Building your own weight bench is a great project that can be done with simple materials like and plywood . Most DIY plans focus on creating either a stable flat bench or an adjustable incline bench. Popular DIY Weight Bench Plans
You can find various plans based on your skill level and workout needs: weight bench plans
If you were literally looking for a bench made of , there are innovative designs made from kraft paper and bamboo that can actually support significant weight (up to 2000kg) by using a honeycomb structure. You can also find origami tutorials for making miniature decorative paper benches. Building your own weight bench is a great