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Sectional Sofa – Chaise Plans

This page contains the 3-D plans and cut sheets for building the chaise section of the sectional sofa.

Cut Sheet

Length (in)Count (#)
Base
2 x 2.75 (2×6 ripped in half)852
313
2 x 4314
Long Back
2 x 2.75 (2×6 ripped in half)852
172
2 x 481.52
103
Short Back
2 x 2.75 (2×6 ripped in half)37.252
172
2 x 433.752
102
Other
Bolts / Nuts & Washers1/2″ x 5″4
Screws2.5″~30
Pocket Screws1.75″ -> 2.5″10
Materials List for Chaise Frame

Start off by assembling the base –

  1. Build the outer frame using the 85″ and 31″ 2 x 2.75″ sections using a set square and some clamps to ensure that everything remains completely square
  2. Attach 2 of the 31″ 2x4s approx 3″ in from either side of the frame (these will be used for the sofa legs in the future – if you want to have the sofa legs closer to the edges then feel free to move them). These are attached along the bottom edge of the frame to provide rigidity and support.
  3. Attach the 3rd 31″ 2×2.75 section approx 7″ (on center) from the right hand edge of the frame. This will be used as a support for the arm rest later down the line
  4. Attach the final 31″ 2×2.75″ section alongside at the top edge of the frame and butted up against the arm rest support – this will be used to attach the webbing to later down the line.

Next step is to assemble the long back section as follows

  1. Build the outer frame using the 85″ and 17″ 2×2.75 sections from the cut list. Use a set square and clamps to ensure everything remains completely square
  2. Attach the two 81.5″ 2x4s to the top and bottom edges of the inside of the frame. These provide some additional rigidity to the frame as the webbing will actually cause the frame to bow without them.
  3. Attach the three 10″ 2×4 pieces as shown in the sketch using pocket screws. One piece needs to be butted up along the left hand side of the frame to help with screwing everything together further down the line.

Assemble to short back section

  1. Build the outer frame using the 37.25″ and 17″ sections of 2×2.75
  2. Attach the two 33.75″ 2x4s to the top and bottom edges of the frame
  3. Attach the two 10″ 2×4 pieces as shown in the sketch using pocket screws. One piece needs to be butted up along the right hand side of the frame to help with screwing everything together further down the line.

Assemble the frame

  • The design of the sofa is such that all of the individual pieces can be upholstered separately and then bolted together – this is to save on complicated upholstering work further down the line. The only exception to this is the L-Shaped back section for the chaise.
  • On a flat surface screw the short and long back sections together at a 90 degree angle. Add as many screws as possible and feel free to use some dowel rods for additional strength.
  • Place the L-Shaped section along the base and clamp together to keep everything flush.
  • Using a 1/2″ drill bit, drill four 1/2″ holes along the back of the long back section and through the back edge of the base (these will be used for the bolts to hold things together)
  • Hammer the bolts through the holes until they are as flush with the framing material as possible (you can notch out a section using a bigger drill bit to make this easier).
  • Add the washer and nut and bolt everything together.
  • Once you are comfortable that everything fits then disassemble the bolts and frame and get ready to add the webbing …