Constructing a Wood Tornado Shelter (3 of 6)

How to build a tornado shelter made of wood using readily available building products.
This video introduces phase 3: Constructing the Ceiling.
Construction guide available at www.fpl.fs.fed... Produced in collaboration with Home Innovation Research Labs.

[@ShakespeareCafe]

GRK RSS Rugged Structural Screws. The best. Those long screws are at least a buck a piece. I would glue all the 2x8s together. Construction adhesive is much more expensive and you're going to be using a lot of tubes. If you screwed the boards together with GRKs it will be much stronger than nails.

[@js-wq6zy]

Why not run the layers at 90% like cross laminated timber, way stronger.....

[@mikehastings1281]

Finding straight lumber is going to be a problem. You will have to rip cut to get straight edges. Maybe 8 ft material wont be too bad. This is an excellent design.

[@davidm9214]

This is how some people make houses now for less plastic waste. They use wood dowels instead of screws though.

[@papi7rx7]

Why not build walls using the existing cement walls to anchor to. Save money on material..

[@TSammut0219]

I actually plan on doing this. Using a corner of my basement and building the other 2 walls like this video. I’ll anchor a ledger board on the concrete sides for the ceiling to sit on.

[@bobbymckenzie3202]

.....step one
Don't use wood

[@JesusRivera-io3ie]

Is this even safe? Hope the tornado doesn't start a fire

[@justinhc123]

This shelter will be incredibly strong in the walls. I would build the roof differently though. 2Xs are much stronger standing upright than they are laying on their sides.

[@user-gu4dh3du2x]

@@justinhc123 What cut of lumber would you use?