Pocket Door Rough Opening ChartThe rough opening for a pocket door is usually 84. Maximum allowable deviation from square is 1/4". The rough opening for a door is the space inside your framing that the door will occupy. Look for a high-quality pocket door frame with durable hardware. com%2fhow-to-install-a-pocket-door-5208087/RK=2/RS=2. Rough Opening The framed opening in a wall where a door is to be installed. Then you need to add 1 to 1 ¾ inches, depending on the size. Door Size OD Frame Size Rough Opening Door Size OD Frame Size Rough Opening Door Size OD Frame Size (BEFORE POCKET FRAME) Foot - Inch W x H in inches W x H in inches. FRAME THE ROUGH OPENING - From finish floor to the rough header(B), the opening (for a 80in [203. The difference between a rough opening and finished opening is usually 2-3 inches. If the screws are too long it will interfere with the doors operation. Comparison Chart Compare minimum to maximum width and height ranges across our product series. So, the rough opening for a 30 inch door slab should be 61 inches wide. EXTERIOR DOORS ROUGH OPENING 2' 6" 32" x 83 1/2" 2' 8" 34" x 83 1/2" 2' 10" 36" x 83 1/2" 3' 0" 38" x 83 1/2" Windsor Plywood's 166 RAINBOW ROAD • SALT SPRING ISLAND Ph: 250-537-5564• Fax: 250-537-1207 www. Height should be the vertical length of the door slab, plus the thickness of the door track and desired clearance (about 1 inch, though product. Minimum height is 84 ½" (door height plus 4 ½"), 88 ½" for a 7/0 kit and 100 ½" for an 8/0 kit. Keep in mind to measure the door only. The rough opening should be 82 inches or 2082 millimeters with a width of 50 inches or 1270 millimeters. FRAME THE ROUGH OPENING - From finishBUILT UP POCKET INSTRUCTIONS floor to the rough header(B), the opening (for a 80in [203. Standard Sizes Door widths which are considered standard usually come in sizes of 2/6 (30”), 2/8 (32”) and 3/0 (36”). Verify the rough opening is level and plumb. Take that number and divide it by 2. 2 inspect rough opening Verify the width and height of the door frame are each 1/2" smaller than the rough opening width/height. This unit looks great and is durable and easy to use compared to the typical pocket door hardware. Today I framed about half of the rough opening for the Pocket Door between the house and the Breezeway Addition. The widthis 2 mes the door width plus 1 ¼”. Pocket Door Accessories; Instructions. **1575 ppk3 1-3/4” adaptor required. Bifold Specification; Hardware and Accessories. Instead of recommending a rough opening size, we give guidelines that will accommodate standard sizes of trim kits. For example, the rough opening for a 36-inch pocket door would be 36 inches + 36 inches + 1 inch = 73 inches wide. Use shims and/or caulk to seal gaps between wall and frame. View our Pocket Door Installation Guide Size or rough opening width chart: Size Rough Opening Width 36" 73" 32" 65" 30" 61" 28" 57" 26" 53" 24" 49" INCLUDED: Pocket Door Header System. How Pocket Doors Work At the heart of every pocket door installation is a pocket door frame system, also known as a cavity slider. For example, the rough opening for a 36-inch. If you need a wider passage width, consider a couple of alternative options. Standard door heights are 6/6 (78”) and 6/8 (80”). Pocket door hardware kits are usually available for doors 1-1/8 inches to 1-3/4 inches thick by 6 feet, 8 inches high. Table of Contents Show Pocket Door: Double Door in Solid Wall. Typically, the rule of thumb is to take the pocket door panel size and multiply it by two. How to frame a rough opening for a pocket door. If you have questions, give us a call at 888-458-5911. But sometimes contractors need this information sooner to start the framing. CONSTRUCT ROUGH OPENING Ensure Header is level, plumb, and square with the studs. The rough opening would be 40-1/2″ x 86-1/4″. There are three simple rules to framing rough openings efficiently: Minimize layout marks; maintain a simple, consistent nailing pattern; and avoid toenailing when possible. Backboard of frame inserts flush with end of headerFasten with nails or screws (not provided). A rough opening for a pocket door is this: double the door's width plus an inch. They help us to know which pages are the most and least popular and see how visitors move around the site. When determining the size door you need, take your rough opening, subtract one, and divide by two. Pocket door hardware kits are usually available for doors 1-1/8 inches to 1-3/4 inches thick by 6 feet, 8 inches high. The rough opening should be 82 inches or 2082 millimeters with a width of 50 inches or 1270 millimeters. Rough opening Deduct 2” from the rough opening width for each 12” sidelite height required is 82” for all doors which open in and 81 1/8”or deduct 3-3/4” from RO width for each 10” sidelite. There are three simple rules to framing rough openings efficiently: Minimize layout marks; maintain a simple, consistent nailing pattern; and avoid toenailing when possible. Measure the rough opening (RO) you have available. Timely Prefinished Interior Steel Frame. Standard widths for interior doors are 24, 28, 30, 32 and 36 inches, while the height must be a minimum of 80 inches. Use the calculator MultiGlide Sizing Calculator. POCKET DOOR FRAMES — ROUGH OPENINGS. Formula for double units: 2 x door width + 2½" = rough … More : 1 x door width + 4½" = rough opening width. Rough openings are calculated using 14” wide sidelites. The rough opening width should equal two times the door width plus 1 (25. 37Y2Nig-" referrerpolicy="origin" target="_blank">See full list on thespruce. Author: MCAMISL Subject: Pocket door frame Created Date: 20151120093339Z. Verify the rough opening is level and plumb. DETERMINING THE DOOR WIDTH FROM A ROUGH OPENING (EXISTING POCKET FRAMING) Step 1: Measure from wood framing on the pocket side to wood framing on the closed side. Door Sizes 60" x 80" (5'-0" x 6'-8") 60" x 80" (5'-0" x 6'-8") We offer diverse 60" x 80" (5'-0" x 6'-8") doors. Single Pocket Door Sizes For small pocket doors: starting from an overall dimension of 51 ¾ inches x 86 ¼ inches, with a passage size of 23 5/8 inches x 78 ¾ inches. for a 3’0″ x 7’0″ door & frame. 94 cm) rough opening width. (Figure A) Verify your rough opening is square. Don't see your exact door size? Remember that Johnson frames can be cut down to accommodate any smaller size door. The height of the rough opening off the rough floor surface is usually 84. You can also check out our video on how to measure here. The rough opening for a pocket door is usually 84. Stand complete frame into opening, plumb and anchor to sub-floor. To get the size of a rough opening, you must measure the door’s actual size first. The difference between a rough opening and finished opening is usually 2-3 inches. They are great space-saving door options for interiors and ideal if you prefer an entry between rooms remain open but once in a while like to close it off. The exterior face of the rough opening must be in a single plane. Ballll Bearingearing Dimensions of Rough Openings for Pocket Door Frames Place header on top of frame and insert metal stiffeners of the frame intothe slots in the header. Compare window and door sizes E-Series Sizing Calculator Calculate dimensions including unit size, rough opening,. for doors which open out. STEP 1 CONSTRUCT ROUGH OPENING Ensure Header is level, plumb, and square with the studs. Manufacturing Hallmark Products ROUGH OPENING GUIDELINES FRAMER TO COORDINATE JOB SPECIFIC SPECS AVAILABLE PREHUNG EXTERIOR DOORS DOOR HEIGHT + 2" DOOR WIDTH + 2" TRANSOM ADD HEIGHT OF TRANSOM + I-SIDELIGHT ADD WIDTH OF SIDELIGHT + 2 SIDELIGHTS ADD WIDTH OF. Read more about our use of cookies. In addition, special sizes can. For example, a 2-foot 8-inch door (32 inches) the rough opening needs to be 65 inches. #1750 Series; Bypass Hardware; Bifold Door Hardware. Mark each side jamb and drive a flat head nail on centerline, leaving 1/8" (3. The rough opening should be about 2 inches wider and 2-1/2" taller than the door itself to allow for proper clearance and easy installation. On average, standard pocket door sizes are 80 inches tall and between 24 and 40 inches wide. door weight for 80" kit is 125 lbs Max. Rough Opening Size Guides Eclisse SliDor Sizing a sliding pocket door system is very easy Measure the available space. Medium pocket doors range from overall dimensions 59 5/8 x 82 ¼ inches to 75 3/8 inches x 82 ¼ inches. Amedcan mgs. Pocket doors can be used in many applications including entryways, room to room, closets, bathrooms and anywhere space is at a premium. A pocket door is a sliding door that tucks into the wall and hides from view when opened. Minimum height is 84 ½” (door height plus 4 ½”), 88 ½” for a 7/0 kit and 100. Measure Door Width and Construct Rough Opening Rough Opening Size Chart *All purpose-marked for cutting to other standard widths. POCKET DOOR FRAME OPENING The width is to be calculated by door width X 2 + 2. Technical Manuals | Curries. The rough opening for pocket doors is actually created by the pocket frame system used. This complete pocket door system is equipt with a fully adjustable Peterson Pocket Door header system, custom hardware kit, and track hardware. A rough opening for a pocket door is this: double the door's width plus an inch. So, the rough opening for a 30-inch door slab should be 61 inches. We provide energy efficient solutions with thermal break frames, decorative openings with Madera, and sound control with Sound-Tech Xpress. STEP 2 MEASURE AND MARK Measure up from the finished floor 80 ¾” or from the sub-floor to 81 ½”. Mark all the plates at once Measure the distance between the king studs (door width plus 5 in. Select from the tools below to find the specific size. 2cm] door) should be a minimum of 84-1/2 in [214. Rough Opening Measurements for Pocket Doors. A rough opening for a pocket door is this: double the door's width plus an inch. Select a frame part number that accommodates your door size. Mark all the plates at once Measure. To get the size of a rough opening, you must measure the door’s actual size first. Measure height of rough opening on both sides. Standard widths for interior doors are 24, 28, 30, 32 and 36 inches, while the height must be a minimum of 80 inches. Door Sizes 60" x 80" (5'-0" x 6'-8") 60" x 80" (5'-0" x 6'-8") We offer diverse 60" x 80" (5'-0" x 6'-8") doors. FRAME THE ROUGH OPENING - From finishBUILT UP POCKET INSTRUCTIONS floor to the rough header(B), the opening (for a 80in [203. Determining the Rough-In for Sliding Doors If. com/_ylt=AwrFAVdyUmBkJ3YhmjdXNyoA;_ylu=Y29sbwNiZjEEcG9zAzIEdnRpZAMEc2VjA3Ny/RV=2/RE=1684062963/RO=10/RU=https%3a%2f%2fwww. Verify the rough opening is plumb (C, E and D). Check out our pocket door charts below. Download Documents; Install Videos; Pricing. 2cm] door) should be a minimum of 84-1/2 in [214. = 36" + 36" + 2" X 84" + 4" =. See chart above for rough opening height. The (A) and (B) measurements should be the same. Refer to the charts below to determine what size of door you will need. The width is 2 times the door width plus 1 ¼”. Pocket door hardware kits are usually available for doors 1-1/8 inches to 1-3/4 inches thick by 6 feet, 8 inches high. Mark each rough stud and drive a flat head nail in the center, leaving 1/8” protruding. door weight for 80" kit is 125 lbs Max. door width is 36" Max. Single Pocket Door Sizes For small pocket doors: starting from an overall dimension of 51 ¾ inches x 86 ¼ inches, with a passage size of 23 5/8 inches x 78 ¾ inches. The height of the rough opening off the rough floor. AND DOOR ROUGH OPENINGS CHART INTERIOR DOORS ROUGH OPENING 2' 0" 26" x 82 1/2" 2' 4" 30" x 82 1/2" 2' 6" 32" x 82 1/2" 2' 8" 34" x 82 1/2" Width 2 x Door size + 2" Height 84 1/2" POCKET DOOR FRAMES R. Be sure you measure from the highest point of the subfloor if your floor is out of level. Choosing the right pocket door. Ballll Bearingearing Dimensions of Rough Openings for Pocket Door Frames Place header on top of frame and insert metal stiffeners of the frame intothe slots in the header. Height should be the vertical length of the door slab, plus the thickness of the door track and desired clearance (about 1 inch, though product. Rough openings are calculated using 14” wide sidelites. Rough openings are calculated using 14” wide sidelites. STEP 1 CONSTRUCT ROUGH OPENING Ensure Header is level, plumb, and square with the studs. (Frame header end plates will rest on these nails. For the width (A) multiply the door size by 2 and add 2in [5. door thickness is 1-3/4" Required rough opening WIDTH = 2 X your door's width + 1-inch Required rough opening HEIGHT = your door's height + 4-1/2 inches. A pocket door is a sliding door that tucks into the wall and hides from view when opened. Rough Opening The framed opening in a wall where a door is to be installed. For the width (A) multiply the door size by 2 and add 2in [5. 25 inches — so the rough opening for an 82. POCKET DOOR FRAME FOR 2” X 4” STUD WALLS See chart above for rough opening height. This provides for 5/8" clearance between the jamb and the wall. Descriptions: 1 x door width + 4½” = rough opening width. The widthis 2 mes the door width plus 1 ¼". Security Plate metal plate pre-installed into the frame of a pre-hung door. For example, the rough opening for a 36-inch pocket door would be 36 inches + 36 inches + 1 inch = 73 inches wide. This domestically produced pocket door frame includes the track, installation hardware and instructions. DETERMINING THE DOOR WIDTH FROM A ROUGH OPENING (EXISTING POCKET FRAMING) Step 1: Measure from wood framing on the pocket side to wood framing on the closed side. Apply for a Home Depot Consumer. FRAME THE ROUGH OPENING - From finish floor to the rough header(B), the opening (for a 80in [203. Rough opening for a pocket door The rough opening for a pocket door frame should be twice the width of the intended door slab, plus 1. 7K views 2 years ago #PocketDoor. Cavity Sliders USA is the pocket door expert and the premier sliding door manufacturer committed to providing high-quality and reliable sliding door products. This clearance is necessary for the pocket on the strike and the projection of the hinge screws. Title: Y:INSTRUCTION SHEET DRAWINGSIN1555CD-----1555 CONVERGING DOOR KITIN1555CD Model (1) Author: rkelly Created Date: 10/29/2021 9:21:07 AM. On average, standard pocket door sizes are 80 inches tall and between 24 and 40 inches wide. 2cm] door the rough opening width is: (30in X 2) + 2in = 62in [(76. This provides for 5/8″ clearance between the jamb and the wall. Here is a quick guide to help you: Step 1: Start with the height Starting from the top corner to the bottom corner, simply run a tape measure along with your door. Accordion Accordion doors fold in sections along a track with wheels when opened. of frame is 40″ x 86″, as the frame face is 2″ around all 3 sides. Minimum height is 84 ½” (door height plus 4 ½”), 88 ½” for a 7/0 kit and 100 ½” for an 8/0 kit. On average, standard pocket door sizes are 80 inches tall and between 24 and 40 inches wide. The widthis 2 times the door width plus 1 ¼”. for doors which open out. door thickness is 1-3/4" Required rough opening WIDTH = 2 X your door's width + 1-inch Required rough opening HEIGHT = your door's height + 4-1/2 inches. Understood Customer Feedback “This is the only way to go for a pocket door. 48cm] BUILT UP POCKET INSTRUCTIONS. Author: MCAMISL Subject: Pocket door frame Created Date: 20151120093339Z. Pocket Door Frames A&F Pocket Door Frame Systems are designed to offer maximum space efficiency because traditional swing doors use valuable floor space. While a standard door height is 80" (finished opening). Door Size OD Frame Size Rough Opening Door Size OD Frame Size Rough Opening Door Size OD Frame Size (BEFORE POCKET FRAME) Foot - Inch W x H in inches W x H in inches. Author: MCAMISL Subject: Pocket door frame Created Date: 20151120093339Z. For reference standard interior door widths range from 24-36 finished opening. The width is typically two times the width of the door plus one inch. Manufacturing Hallmark Products ROUGH OPENING GUIDELINES FRAMER TO COORDINATE JOB SPECIFIC SPECS AVAILABLE PREHUNG EXTERIOR DOORS DOOR HEIGHT + 2" DOOR WIDTH + 2" TRANSOM ADD HEIGHT OF TRANSOM + I-SIDELIGHT ADD WIDTH OF SIDELIGHT + 2 SIDELIGHTS ADD WIDTH OF SIDELIGHT + 5 PREHUNG INTERIOR DOORS DOOR WIDTH + 2" DOOR HEIGHT + 2 …. This costs much more but you will see the difference in ease of operation and quality. 3 Wheel Pocket Doors. 1500for 1” to 13/4” Thick Door to 125 lbs. This is your rough opening width (RO width). It is designed to provide extra strength and stability from a forced entry attempt by allowing the latch of the door to rest inside it when the door is closed. Ceco Door, a leading manufacturer of steel and hollow metal doors and frames, composite and commercial doors. Comparison Chart Compare minimum to maximum width and height ranges across our product series. DOOR HEIGHT + 4-1/2 (114mm) Commercial Grade Pocket Door Frame. See chart above for rough opening height. Built-Up 3 Wheel #1000 Series Knock Down 3 Wheel #1000 Series. This is your door width. Size Pocket Door. Rough opening Deduct 2” from the rough opening width for each 12” sidelite height required is 82” for all doors which open in and 81 1/8”or deduct 3-3/4” from RO width for each 10” sidelite. 14 after $25 OFF your total qualifying purchase upon opening a new card. Ceco Door, a leading manufacturer of steel and hollow metal doors and frames, composite and commercial doors. What is the rough in size for a pocket door? The open doorframe should be twice the width of the intended door slab, plus 1 inch. Rough Opening Size Guides Eclisse SliDor Sizing a sliding pocket door system is very easy Measure the available space. POCKET DOOR FRAMES — ROUGH OPENINGS. For a retrofit, cut away the wallboard in an orderly fashion that minimizes airborne dust and the related mess. What is the rough in size for a pocket door? The open doorframe should be twice the width of the intended door slab, plus 1 inch. ROUGH OPENING HEIGHT + 3/4" [19mm] TO 1-1/2" [38mm] NAIL SNAP CHALK LINE NAIL ON CENTER NAIL 1Header must be SQUARE and PLUMB with studs and LEVEL. Security Plate metal plate pre-installed into the frame of a pre-hung door. How wide is a 32 inch pocket door? Assembled Depth (in. POCKET FRAMES. Finished Opening Size for Bifold Doors The finished opening size for a bifold door will vary according to the bifold door size anyone will choose to use for their homes. The width is 2 mes the door width plus 1 ¼”. A 36” x 80” pre-hung single door will use a rough opening of approximately 38-1/2” x 82-1/4” to fit. Technical Manuals | Curries. With a wide array of standard sizing and custom sizing in 1/8" increments, rest assured that Andersen can deliver a window or door that will meet your dimensions. Designed for standard 2X4-stud walls Max. The rough opening sill must not be crowned or sagged. Rough Openings and Framing – Single Frame. 3 Wheel Built-Up 1000 Series. Look for a high-quality pocket door frame with durable hardware. bottom of the header (top of rough opening). Rough Opening Sizes for Commercial Door Frames Featuring Doors Made in the USA! Rough Opening Sizes for Door Frames Recommended Opening Sizes for Hollow Metal Frames Interior Knockdown Frames that Wrap Wall A = opening width + 2″ B = opening height + 1″ The rough opening would be 38″ x 85″ for a 3’0″ x 7’0″ door & frame. 2' 0" 26" x 82 1/2" 2' 4" 30" x 82 1/2" 2' 6" 32" x 82 1/2" 2' 8" 34" x 82 1/2" Width 2 x Door size + 2" Height 84 1/2". Measure Door Width and Construct Rough Opening Rough Opening Size Chart *All purpose-marked for cutting to other standard widths. The pocket door frame needs to be able to fit within this space. A rough opening for a pocket door is this: double the door's width plus an inch. STEP 1 CONSTRUCT ROUGH OPENING Ensure Header is level, plumb, and square with the studs. The Timely P series trim kit is designed to fit most common applications. B = opening height +. For Single Pocket Doors: 1. It's a great door when space is at a premium, and there's no room for the swing arc of a door. Depending on the entry width, single or double doors can be used. Determining the Rough-In for Sliding Doors If framing new sliding doors, you typically add 2 inches to the door's width. To determine the door size you want, take the RO width and subtract 1 inch. Rough opening for a pocket door The rough opening for a pocket door frame should be twice the width of the intended door slab, plus 1 inch. INTERIOR DOORS ROUGH OPENING. The rough opening for pocket doors is actually created by the pocket frame system used. Its a very specific height and width both called out in the written pocket door installation instructions. It is designed to provide extra strength and stability from a forced entry attempt by allowing the latch of the door to rest inside it when the door is closed. Rough opening width is 1 1/4" over nominal door width. The rough opening sill must not be crowned or sagged. In comparative impact testing, 18-gauge RediFrame withstood 850 impacts, this is over 500 more than drywall hollow metal. Frames can be installed with smaller opening widths but, in some cases, the framing. Rough Opening Size Guides Eclisse SliDor Sizing a sliding pocket door system is very easy Measure the available space. Minimum double studs should be used at all rough openings. Descriptions: 1 x door width + 4½" = rough opening width. Minimum height is 84 ½” (door height plus 4 ½”), 88 ½” for a 7/0 kit and 100 ½” for an 8/0 kit. FRAME THE ROUGH OPENING - From finish floor to the rough header(B), the opening 1/2 in [214. Refer to the charts below to. 2cm] door the rough opening width is: (30in X 2) + 2in = 62in [(76. The difference is the Dunbarton anchoring system. Minimum height is 84 ½” (door height plus 4 ½”), 88 ½” for a7/0 kit and 100 ½” for an 8/0 kit. Frames can be installed with smaller opening widths but, in some cases, the. Verify the rough opening is square. 2 cm) door multiplied by two equals 60 (152. You can customize even more 60 inch exterior and interior doors to achieve a nice fit for your doorway at exceptional price from US Door & More Inc because odd dimension is our focus. american openings sliding patio doors rough opening dimensions door call-out 50-68 60-68 80-68 pocket doors 2 times the door width + 1" rediframe doors. Compare window and door sizes E-Series Sizing Calculator Calculate dimensions including unit size, rough opening, casing size and masonry opening. Door Size Rough Opening (1) Door Pocket (1) Side Jam Step 5 Adjust Door To Fit Opening Step 4 Install Mounting Brackets To Door Insert Rollers Into Track And Install Door Use Shims To Square And Plumb Frame Install Drywall Then Remove Wood Spacers Step 2 Use Shims to Level Track Secure with Nails Every 16" ep Metal Channel Fits Into Notches. Determine your door size (door width, door height and door thickness) 2. The width is typically two times the width of the door plus one inch. door weight for 96" kit is 200 lbs Max. By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. They are commonly used for powder rooms but also doorways into adjacent rooms like a kitchen into a dining room. Commercial Door & Frame - Rough Openings Rough Openings We always provide this rough opening guide with our submittals. So, the rough opening for a 30-inch door slab should be 61 inches. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. is 2 times the door width plus 1 ¼”. FRAME THE ROUGH OPENING - From finish floor to the rough header(B), the opening (for a 80in [203. Designed for standard 2X4-stud walls Max. Pocket doors serve as good interior doors because they are a space-saving door design. com STORE HOURS:Monday - Friday: 7:00am - 5:30pm Saturday: 7:00am - 5:30pm • Closed Sunday S i nce 1 9 6 9. (Figure A) Measure width of rough opening at top, center and bottom. You can customize even more 60 inch exterior and interior doors to achieve a nice fit for your doorway at exceptional price from US Door & More Inc because odd dimension is our focus. We recommend opening be 1” wider than door unit. Left hand swing: Right hand swing: OUR DOOR SERVICE AIMS TO PLEASE Our Windsor doorshop offers machin-ing to match, and custom pre-hanging. Here below, the ECLISSE Single model is used as an example. For a slab door, measure the width, height and thickness of the door. The rough opening would be 37-14 x 85. For a 36 inches wide pocket door, the rough opening will be 61 inches wide. In addition, special sizes can sometimes be custom ordered. While a standard door height is 80" (finished opening). (42) Questions & Answers (36) Hover Image to Zoom. A rough opening for a pocket door is this: double the door's width plus an inch. There are six standard door sizes: 24, 28, 30, 32, 34 & 36 in inches for width. FRAME THE ROUGH OPENING - From finish floor to the rough header(B), the opening (for a 80in [203. Our house has pocket doors from the kitchen to the dining room and kitchen area to the foyer. Pocket Door Performance & Security RediFrame is designed to sleeve the wall, becoming an integral part of the wall system. Pocket Door Frames A&F Pocket Door Frame Systems are designed to offer maximum space efficiency because traditional swing doors use valuable floor space. For a pre-hung door, measure the width and height of the slab, the rough opening (space between the studs with no door installed), and the thickness of the jamb. We recommend the opening be 1/2” taller than door unit.