How to install a prehung exterior door in a concrete block?

The article aims to answer the question “How to install a prehung exterior door in a concrete block?”. It will also mention the steps and considerations you need to take while framing and hanging your exterior door in a concrete block.  

How to install a prehung exterior door in a concrete block?

  • If there is an old door, take it out. Scrape away any old caulk from the door and remove any timber casing from the rough aperture.
  • Measure the rough aperture and the case for the new pre-hung door to get the correct dimensions. Remove the pre-hung door case’s dimensions from the raw opening’s dimensions. 
  • For the pre-hung door casing to fit in the rough opening, you’ll need to fill in this amount of space with timber. Measure and mark the locations where you’ll need to make your cuts in the rough opening.
  • Make the rough opening with the timber you just cut. Use a circular saw to cut the timber to fit, use a miter saw to cut the ends of each piece at a 45 degree angle so they fit together in the corners of the structure. 
  • Check the skill using a level. Insert shims under the sill if it’s not level to make it so.
  • Cement screws may be used to secure the timber to the cinder blocks and to fill up any gaps. Drilling holes that are the same size as the screws is ideal. For this, you’ll need a concrete drill. 
  • When building the rough opening, you’ll screw in the lumber right into place. 
  • After that, screw in the top piece of lumber so that the longest edge is flush with the rough hole, and then attach each side section to the top piece by connecting the mitered ends and attaching them in place. 
  • After the two side parts, the bottom piece should fit snugly between them.
  • In order to install the pre-hung door, apply a bead of caulk around the wood frame.
  • Rough in the door by screwing it into the frame. Screw in 3-inch screws. Screw them into the door frame near the hinges and in any other places advised by the manufacturer. To begin, use a cement drill to make a pilot hole.
  • Insulate the areas in between the frame and the inside wall using rigid foam insulation. First, insulate with expanding foam, and then with fiberglass to complete the job. 
  • The exposed insulation will be covered by the trim surrounding the door when it is installed later.

What do I need to install a prehung exterior door in a concrete block?

  • Exterior Door
  • Drill machine
  • Screws
  • Hammer
  • Nail set
  • Gloves
  • Protective gear
  • Mask
  • Goggles

How to do the frame to install a prehung exterior door in a concrete block?

  • Use pressure-treated deck planks for the initial framework (one for each side and three to fill the gap at the top). Wood screws may now be used to join the new door frame to the existing one because of this. 
  • Make the doorway’s top board as wide as possible (less a quarter inch to allow for adjustment). Make a rabbet out of the second and third boards by trimming them to the same thickness as the first two boards. Screwed the top three boards together, then joined the side pieces with screws pushed through the top board.
  • The garage’s brick wall is eight inches thick. About 5 inches is a good depth for the door frame assembly. 
  • Allow an inch and a half of space between the frame and the outer wall. As a result, a 22 piece of timber may be used as trim. 
  • In order to attach the boards to the block, you can use concrete screws (Tapcons): 5 inch screws for the top and 2 inch screws for the 1 inch thick boards on each side.

How to install the door in a concrete block?

  • You are now ready to install the new door after completing the simple phase. It may be a very frustrating task, as you may have discovered. 
  • The majority of do-it-yourselfers will want some assistance in order to hang a door. Shaking hands and apologizing in advance for all the profanity you are going to unleash is a good piece of advice. 
  • Place the door into the opening you just created. Because of this, the rough opening must be 2′′ bigger and taller than the door. The door frame must be square and plumb in order to function correctly.
  • So that the weatherstripping can maintain a tight seal, the door’s frame must be square. The door should open and close smoothly, and should stay open.
  • The front and back are vertical, as are the sides. Use a plumb bob or a level to check.
  • You don’t need any shims on the hinge side of the rough opening since it should be absolutely vertical. Screwing the remainder of the door frame to the rough frame was then a simple matter of shimmy and tack. Then, fill up the spaces with expansion foam.
  • To get a perfectly square corner, I’ve been advised to shim the edges. Then there’s the question of whether the hinge side or the latch side should be shimmed and screwed first. 
  • However, I have subsequently installed numerous additional doors and I don’t believe that any of them have been done the same manner. The most important thing is to keep checking and adjusting the door as you go.

Conclusion

Pre-hung doors are the simplest to install. These doors are delivered in a solid frame and must be installed into an existing aperture. A pre-hung door that fits snugly into your rough opening, such as one built of cinder blocks, will be easier to install than one that is larger. To ensure that the door will fit properly, you might use a wooden frame to suit the rough opening.

Frequently asked questions (FAQS): How to install a prehung exterior door in a concrete block?

How to install a prehung exterior door in a concrete block?

If there is an old door, take it out. Scrape away any old caulk from the door and remove any timber casing from the rough aperture. Measure the rough aperture and the case for the new pre-hung door to get the correct dimensions. Remove the pre-hung door case’s dimensions from the raw opening’s dimensions. 

For the pre-hung door casing to fit in the rough opening, you’ll need to fill in this amount of space with timber. Measure and mark the locations where you’ll need to make your cuts in the rough opening.

Make the rough opening with the timber you just cut. Use a circular saw to cut the timber to fit, use a miter saw to cut the ends of each piece at a 45 degree angle so they fit together in the corners of the structure. 

How to do the frame to install a prehung exterior door in a concrete block?

Use pressure-treated deck planks for the initial framework (one for each side and three to fill the gap at the top). Wood screws may now be used to join the new door frame to the existing one because of this. 

Make the doorway’s top board as wide as possible (less a quarter inch to allow for adjustment). Make a rabbet out of the second and third boards by trimming them to the same thickness as the first two boards. 

Screwed the top three boards together, then joined the side pieces with screws pushed through the top board.

Bibliography

Installing a pre-hung exterior door. Retrieved from: https://www.thumbandhammer.com/door/

Leave a Comment