Is this hide veg-tan or chrome-tan?

The product name says veg-tan but the specification list says chrome tan. That matters: veg-tan takes tooling, stamping and water-based dye, chrome-tan does not. Ask Tandy to confirm the tannage before you buy.

What can I make from a 4 to 6 oz. side?

Belts, straps, dog collars, holsters, sheaths, bags, pouches, journal covers and cases. At 1.6 to 2.4 mm it is firm enough to hold shape but still folds and skives for edges.

How big is the side, really?

Tandy lists an average of 21 to 25 sq. ft., but hides are natural and vary. Expect some pieces to run smaller, and plan cuts around the shape you receive.

Can I tool or stamp this leather?

Only if it is vegetable-tanned. Chrome-tanned leather, which the spec block lists, does not hold tooling impressions well. Confirm the tannage first if carving or stamping is the plan.

Is utility grade good enough for selling?

Yes, with planning. Cut around scars, brands and loose areas, and use the clean sections for visible parts. The rest works for linings, straps and practice pieces.

How should I store a side this large?

Roll it loosely rather than folding sharp creases, keep it flat and dry, and away from direct sun and heat. Store it where humidity stays moderate so it does not dry out or grow mold.