How To Build A Soundproof Sand Filled Door

2x4 home recording studio how to build recording studio door sand sand filled soundproof soundproof door soundproofing Nov 28, 2022

You can build a door from scratch and fill it with sand to create a soundproof door. In this article we will go over how to build your door.

Materials

3-5 bags of dry sand

Lots of Wood Glue

2 Sheets of 1/4" or 3/8" Plywood

2 Sheets of plywood hardwood veneer

3-5 seven foot 2x4 studs

1) Start by cutting all of your 2x4's lengthwise so the boards are now 2x2's or really 1.5" x 1.75" nominally.

2) Cut 1 piece of plywood so that it fits the size of your doorway minus 1/8" or 3mm on all four sides.

3) Attach the 2x2's to your plywood building a frame for the door. Use cross braces at the top and bottom and in the middle to keep the door square.

Photo courtesy of JHBrandt Design www.jhbrandt.net

3) Measure 36" from the bottom and create 3 pieces of 2x2's for your lockset. These are the three middle studs you see in the picture above.

4) Next pour the sand into your door where the spaces are. See photo below (courtesy of JH Brandt)

5) Glue and staple the top piece of plywood over the sand filled door.

6) Finally glue the hardwood veneer to both the front and back of your door.

This door will be very heavy so make sure to use multiple people to lift it and use at least 4-6 hinges when hanging it.

Join Our FREE Soundproofing Workshop