Latest Discussions : Tools & Workshop


04:40AM | 07/29/00
Member Since: 07/28/00
2 lifetime posts
What is the purpose of the 1x3 strapping that I see you put on ceilings? To straighten and make things flat? Change direction of wall board? What are the consequences of not using strapping and attaching the wall board or blue board directly to the ceiling joists or in my case, 24" O.C. scissors trusses.

Thanks in advance!
Raino Trifonoff


02:07PM | 05/20/01
Member Since: 05/16/01
4 lifetime posts
The reason for using strapping can be for several reasons.

1. On 24" center trusses the Drywall has to be 5/8".You can place the strapping at 16OC and use 1/2" drywall.
2. Strapping can even out older houses with crooked, twisted and uneven joists. You must ship the places where the strapping doesn't meet the joist.
3. Strapping provides a wider nailing, screwing location for sheet goods. Trying to join and nail two pieces of drywall on
a 1 1/2" wide stud is not as easy as a 2 1/2" wide strapping.


08:30AM | 03/19/02
Member Since: 03/18/02
4 lifetime posts
What's the best way to attach the strapping to the trusses? Then do you attach the drywall perpendicular to the strapping and parallel to the trusses?

Mark Hammond

05:05PM | 03/19/02
Member Since: 05/09/01
246 lifetime posts
Hello Davankar,
All good answers but it also keeps the joists from moving causing cracks in the drywall material. The drywall should run like plys in a piece of plywood, at right angles to the furring strips which are 16" oc.....Mark Hammond


02:29AM | 03/20/02
Member Since: 03/18/02
4 lifetime posts
Thank you for your reply but my first question about attaching the furring strips was not answered. Is one screw at each joist location enough or do you need two? Then what is the layout needed for screwing the drywall to the strips? Every 6" on edges and 12" in the field? Should you make sure to put a longer screw through the strip and joist where they meet?

Again, thanks for your response.


06:26AM | 03/20/02
Use 2 – 1 ¾” course thread multipurpose screws into each truss to secure the furring strips. Using 2 screws at each truss will help keep the furring form cupping. Use 1 ¼” course thread screws to secure the drywall. Use screws at 6”- 8” on center at the butt joints and 12” minimum in the field. Longer screws through the drywall into the trusses are not necessary.

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