Flat Roof Dormer Cost

15 00 20 00 finishing the interior.

Flat roof dormer cost.

In addition to basic carpentry tools the project requires a circular saw a reciprocating saw. 50 00 110 00 the higher cost per square foot to frame side and roof dormers compared to additions is due to their smaller size. Thus a typical size dormer of 240 sq ft. However the final price can vary based on the following.

How much a dormer should cost. Average cost and size. Types of dormers costs. Flat roof dormer cost.

Removing roof material and cutting the roof deck. Flat roofs have less roofing material but more siding so your cost will vary based on the price of the materials you choose. Smaller projects like adding a window dormer cost about 4 000 larger remodels like adding a bathroom dormer run about 24 000. Average costs and comments from costhelper s team of professional journalists and community of users.

3 25 4 50 framing the dormer. It typically costs between 2 500 to 20 000 for professional dormer installation or about 115 per square foot. Gable dormers cost 3 000 to 11 500 depending on the size and complexity of it. 15 16 costs 30 000 34 000 without a bathroom and 38 400 41 000 if you add a bathroom.

19 00 32 00 siding and roofing materials installed. On average putting in a shed dormer costs 125 140 per square foot adding a dormer bathroom significantly increases your total cost to 160 170 per sq ft. Hip dormers can cost anywhere from 4 000 up to 15 000 depending on what it s being used for and the size of the dormer. How much does a dormer addition cost.

Dormers come in three very different styles gable shed and hip. The family handyman magazine estimates it takes about 1 800 in materials for a do it yourselfer to build a dormer about 6 feet wide and 9 feet high with one window. Shed dormers range in price from around 5 500 for a 12 footer to 11 500 for a 30 foot dormer. 80 125 per square foot or 17 900 to 28 000.