Engineering Expertise for Building Structure

Job ID: 37549959

Budget: $30 – $250 USD

for an existing building

someone added a second floor with true 2x12 floor joists sitting on six handmade beams (2x12x60 ft and 3 planks thick) equally spaced across the 40ft width, with 8 4x4 post under uber each 60 made up beam.



The post sit on the existing first floor (2x12 joist 12: on center covered with 2 layers of 3/4 T&G decking.



Basement floor (thin concrete) to bottom of 1st floor joists - 8ft

First floor to bottom of 2nd floor joists - 9ft



under basement floor - sand



2nd floor was used for auto parts storage

New use: art gallery



total room size 40x60

we want to cut the center out of the 2nd floor with nice banisters around the opening.

area around walls will be about 9ft

this floor will be supported by 4 60 beams one set next to outside wall and the other

about 8ft from the outside wall



These 4 beams will each be support by 3-4 posts

It is envisioned we will excavate and poor a footing for each post

each post will be made of 2 sections of steel about 9ft long welded together.



Will need US stamp in the future

looking for a design that maximizes 1st floor headroom, concept, basic drawings