What weight dumbbells should I buy? For most people starting out, the answer is not one number. It is a small range of pairs, chosen by a simple test: a weight you can lift with good form for the target number of reps, where the last few reps feel hard. Below, we explain that test using CDC, NHS and Mayo Clinic guidance, then price starter sets from the Tru Grit Fitness gear we list, including where Tru Grit sells for less.
A quick health note first: if you have not exercised for a while, or have a heart, joint or other medical condition, talk to your doctor before you start lifting.
What weight dumbbells should I buy? Use the rep test
The guidance agrees on the method, though none of it gives a single “right” weight:
- The CDC suggests 8 to 12 repetitions per exercise as one set, working to the point where it is hard to do another rep without help, on at least 2 days a week.
- Mayo Clinic (mayoclinic.org, “Strength training: Get stronger, leaner, healthier”) says to choose a weight heavy enough to tire your muscles after about 12 to 15 repetitions, and to gradually increase the weight when you can easily do more reps.
- The NHS recommends strengthening activities that work all the major muscle groups on at least 2 days a week, and to speak to your GP first if you have not exercised for some time or have medical conditions or concerns.
Put together, the practical rule is: pick the weight you can move for roughly 8 to 15 controlled reps with clean form, where the final reps are a real effort but your form does not break down. If you can blow past the top of that range, go up a size; if you cannot reach the bottom with good form, go lighter.
Dumbbell weight for beginners: why one pair is not enough
The rep test gives a different answer for every exercise. A weight that is hard for a shoulder raise will usually feel easy for a goblet squat or a row, because bigger muscle groups can handle more. That is why most home lifters end up with three pairs:
- Light pair: for shoulder raises, curls and other small-muscle moves.
- Medium pair: for presses and rows.
- Heavy pair: for squats, lunges and Romanian deadlifts.
If you can, run the rep test at a gym or with a friend’s set before you buy. The weight that passes for each type of exercise becomes your shopping list. Since the guidance says to progress gradually, plan to add heavier pairs later rather than buying far ahead.
Dumbbell set for home gym: what pairs cost
We list two Tru Grit hex lines, both sold as pairs. The Hex Rubber Coated Dumbbells run from 2.5 lb to 95 lb pairs, with a solid steel core, rubber heads and a listed tolerance of +/- 3%. The listing gives a 25mm handle up to 10 lb and a 35mm handle from 12.5 lb up. The Hex Elite TPU Rubber Dumbbells run from 2.5 lb to 125 lb pairs, add a 17.5 lb step, and use TPU heads with MIG welded handles; the warranty table on that listing shows 3 years for dumbbells.
| Pair weight | Hex Rubber Coated | Hex Elite TPU |
|---|---|---|
| 5 lb pair | $40 | $40 |
| 10 lb pair | $50 | $65 |
| 15 lb pair | $70 | $85 |
| 20 lb pair | $85 | $115 |
| 25 lb pair | $115 | $135 |
| 30 lb pair | $130 | $160 |
| 35 lb pair | $150 | $175 |
| 40 lb pair | $160 | $195 |
| 50 lb pair | $240 | $255 |
Prices are per pair at the time of writing. One oddity: on the Hex Rubber Coated listing, the 50 lb pair ($240) is priced above the 55 lb pair ($210), and Tru Grit’s own site shows the same pricing. If you are between those two sizes, call us at 866-777-2590 before ordering.
Example only (our math, not a prescription): if your rep test lands on 10, 20 and 30 lb pairs, that is $50 + $85 + $130 = $265 in Hex Rubber Coated, or $65 + $115 + $160 = $340 in Hex Elite.
Price check against Tru Grit direct
Tru Grit sells these lines on its own site, trugrit-fitness.com. When we checked on October 6, 2026, its per-pair prices for the Hex Rubber Coated and Hex Elite dumbbells, and its kettlebell prices, matched ours. Tru Grit’s site also showed a number of sizes as sold out, so call us to confirm stock before you order. Shipping matters on small orders: we ship free freight on orders of $999 or more, and charge a flat $200 below that. A three-pair starter set alone falls under that line, so compare delivered totals or combine dumbbells with a bench or rack in one order.
Hex dumbbells vs adjustable dumbbells
- Fixed hex pairs are ready immediately, which helps if you move between exercises quickly. The Tru Grit listings point out that the hex shape gives a stable base for push-ups and keeps the dumbbells from rolling. The trade-off is floor space and cost.
- Adjustable dumbbells pack many weights into one footprint. Weight steps and maximums vary by model, so check them against your rep-test numbers.
If floor space is tight, read how much space you need for a garage gym before committing to a growing set.
How heavy should my kettlebell be?
The same rule applies: a bell you can control for the target reps with good form, starting conservatively. A two-handed swing and a one-arm press with the same bell feel very different, so many people end up with more than one. Learn swings with qualified coaching if you can, because form matters more than load.
Our Cast Iron Kettlebells come in 12, 18, 26, 35, 44, 53, 62, 70, 80 and 88 lb, from $50 (12 lb) to $245 (88 lb) (powder coated, flat base). For storage, the wall-mounted Modular Kettlebell Storage Hook ($55.08) lists 150 lb of storage.
Storage and a bench for your dumbbells
- A-Frame Dumbbell Rack (RACK1001), $124.99: holds 10 hex dumbbells (five pairs), rated for 200 lb, listed at 14.25 x 13 x 26 inches. Tru Grit sells this rack direct for $110, less than our price.
- Dumbbell Weight Storage Rack (RACK1000), $275.99: a 3-tier rack with angled shelves, listed at 60 x 48 x 23.7 inches. The listing does not publish a weight capacity; call 866-777-2590 to confirm.
- Utility Flat Power Bench (BNCH1001), $200.99, or the Adjustable Weight Power Fitness Bench (BNCH1000), $500.99, with 12 positions from 0 to 85 degrees. Tru Grit lists the flat bench at $200 direct.
For which bench to pick, see flat vs adjustable weight bench. For wall and floor layouts, see our garage gym storage ideas. If dumbbells are part of a bigger build, garage gym on a budget shows how to group purchases over the free shipping line, and the home gym buying guide covers what to buy first. You can browse every item from this brand on our Tru Grit Fitness page, and read our return and refund policy before ordering heavy items.
Frequently asked questions
What weight dumbbells should a beginner buy?
The ones that pass the rep test for your exercises: roughly 8 to 12 reps (CDC) or about 12 to 15 reps (Mayo Clinic) with good form, where the last reps are hard. The sources we used do not give fixed numbers for men or women, so we do not either.
When should I move up to heavier dumbbells?
Mayo Clinic’s guidance is to gradually increase the weight when you can easily do more repetitions than your target. Move up one size at a time.
Are hex dumbbells better than adjustable dumbbells?
Neither is better for everyone. Fixed hex pairs are quick to grab and do not roll; adjustable dumbbells save floor space.
How heavy should my kettlebell be?
Use the same approach as dumbbells: a bell you can control for your target reps with good form, starting light. Our Cast Iron Kettlebells start at 12 lb.
Do I need a doctor’s OK before lifting?
The NHS advises speaking to your GP first if you have not exercised for some time or have medical conditions or concerns, and Mayo Clinic gives similar advice for chronic conditions.
