This plan runs four weeks on one pair of adjustable dumbbells. Each week changes one thing: reps, tempo, or load. Because the progression is fixed, it shows up in the numbers you already log, like weight, body-fat percentage, calories, and sets, not just in how a session feels.
What dumbbell weight do you need?
Start from your logs, not a chart. Pick a weight you can lift for 10 clean reps with 2–3 reps left in the tank. If rep 10 is slow but doable, that's your week 1 weight.
Test it with three sets. Do one set each of goblet squats, rows, and presses. If all three feel easy at 10 reps, go heavier. If you fail before 8, go lighter. Muscle growth happens across a wide rep range as long as sets end close to failure (per Schoenfeld's review of rep-range research), so 8–15 reps works for most lifts.
Why one adjustable pair is enough.
A single adjustable set covers roughly 5–52 lb without buying anything else. When the next weight step is too big, the plan adds reps, sets, tempo, or single-arm work instead. Gaugegrain sets your starting weights from the measurements you already log: https://gaugegrain.com/
How the weeks progress
The order is volume first, density second, load last. You add reps before you touch the dial, because the next step on most adjustables is 5 lb per hand, and jumping early wrecks form.
| Week | Sets × reps | Rest | Focus |
|---|---|---|---|
| 1 | 3 × 8 | 90 sec | Baseline: log every set |
| 2 | 3 × 8→10 | 90 sec | Add reps until all sets hit 10 |
| 3 | 3 × 10, 4-1-4 tempo | 75 sec | Slow lowering, rest-pause last set |
| 4 | 4 × 6–8 | 2 min | Heavier load, rebuild the ladder |
Week 1: baseline
Three sets of eight at a weight you could lift ten times. Record every set. This is your reference point.
Week 2: rep ladder
Same weight. Add reps each session until all three sets reach 10. That earns the load jump.
Week 3: tempo and rest-pause
Lower for four seconds, pause for one, lift with control. On the last set, rest 15 seconds and squeeze out a few extra reps.
Week 4: load jump
Go heavier, drop to 6–8 reps, and do four sets. If the next dumbbell step is too big, switch to single-arm rows and presses. Working one side at a time lets you handle more load per arm and adds stability demand, so the old weight becomes harder. Our Fitbod comparison covers where this fixed structure falls short of app-generated rep schemes.
Which exercises to use
Keep the menu small and run it all four weeks. If you swap exercises every session, your log becomes noise: a 3×10 row at 40 lb tells you nothing if next session is a variation you've never done. Keeping each movement in one slot makes every set comparable to last week's, which tells you whether the next jump should be load or volume.
Session A: push
Floor press, overhead press, goblet squat, and a lateral raise or push-up finisher. Pushing recovers fast, so this session takes the first load jump.
Session B: pull and hinge
One-arm rows, Romanian deadlifts, curls, and rear-delt raises or shrugs. Single-arm work pays off here when your dumbbells skip from 40 to 50 lb.
Session C: legs and carry
Goblet squats, split squats, weighted sit-ups, and farmer carries. Carries progress with distance and time as well as load, so they're the easiest lift to advance.
Keep protein high throughout. Evidence summaries put most lifters at about 1.6–2.2 g per kg of bodyweight per day (https://examine.com). Logging meals alongside sets is where a tracker like Cronometer helps, and we cover that tradeoff in our comparison.
Progressing when your dumbbells jump in big steps
A 5 lb step can be a 20%+ increase on smaller lifts. Close that gap with reps, tempo, and single-arm work before you change the weight.
Rep ladders
When a weight gets easy, add reps instead of load: for example, 10 → 12 → 15 reps across weeks, then drop back to 8–10 reps at the next weight up.
Tempo
Slowing the lowering phase to 3–4 seconds makes a set much harder with the same dumbbells.
When to jump
Only move up once you clear the top of the rep range with clean form at your current tempo. If form breaks at the new weight, go back down and add a set instead.
Gaugegrain logs these variables against your baseline measurements, so the plan adjusts as your weight and body fat change. It's lighter than MyFitnessPal on food logging (comparison: https://gaugegrain.com/vs/myfitnesspal), but measurement-first progression is the point.
A complete 30-minute session
The 5-20-5 structure. Five minutes of warm-up (light goblet squats, arm circles, light RDLs), twenty minutes of work, five minutes of stretching. That gives four 5-minute work blocks.
Supersets for one pair. Pair a lower-body move with an upper-body one so one area rests while the other works:
- Goblet squats + rows
- RDLs + floor press
- Lunges + overhead press
- Finisher: curls + push-ups
Gaugegrain builds this layer from the same baseline you already log; our about page explains the approach.
Starting lighter or training at home
Starting loads
Begin at the low end of each rep range with the lightest setting that leaves two reps in reserve. If presses or rows still feel too heavy, use bodyweight versions in week 1 and add load in week 2. The progression table stays the same. Many people find lower-body lifts climb faster than upper-body ones, so squatting heavier than you press is normal.
Space and noise
You need about a 2×2 m patch; a yoga mat covers it. Lower weights slowly instead of dropping them, and skip jumping moves. Rows and deadlifts work fine on carpet; put a folded towel under the dumbbells to protect the floor.
Matching food to the plan
Cutting
Keep protein high, around 0.7–1 g per pound of bodyweight, and use a moderate deficit so reps and sets still climb. If reps stall while weight drops fast, your deficit is probably too big.
Bulking or maintaining
For a bulk, eat roughly 10–20% above maintenance and let scale weight and body-fat percentage show whether you're gaining muscle or mostly fat. At maintenance, eat at your logged average and treat the block as recomposition.
Logging tools
MyFitnessPal, Cronometer, and Lifesum all track calories and macros; Cronometer's micronutrient detail suits people who already track body fat. Gaugegrain builds the meal layer from your measurements, keeping targets consistent as the plan advances. No app can size your deficit without accurate logging, and because big dumbbell jumps make overload harder, the food side matters more, not less.
How to tell the plan is working
Daily weight and body-fat readings swing with water, salt, and carbs, so single numbers mislead. Track trends instead. Once a week, same day and time, right after waking, log:
- Average weight for the week
- Body-fat percentage, under consistent hydration
- Waist at the navel, which shows fat loss sooner than the scale
- Sets and reps on two or three benchmark lifts
Calipers and smart scales both have error margins, so judge progress over weeks, not days. When cutting, expect about 0.5–1% of bodyweight lost per week; when bulking, half that or less. If your waist is shrinking but the scale is stuck, you're likely holding water.