Six DIY exercise equipment projects.

1. Sandbags. Rice, sand, or pea gravel in sealed duffel. Cheaper than kettlebells for similar training.
2. Pull-up bar between door frames. Sturdy pipe, mounting brackets.
3. Plyo box. Plywood, 3:2:1 dimensions for versatile heights.
4. Parallettes. PVC + fittings for push-up / L-sit work.
5. Gymnastic rings + doorway mounting strap. $30 vs $200 gym setup.
6. Weighted vest from sandbags in a vest.