NASM Home Gym Design cheat sheet

Baseline screen: record PAR-Q+ readiness, resting HR, blood pressure, and current injury history before specifying any equipment; equipment choices follow documented limitations, not preferences.

Movement screen drives equipment: a client who cannot pass an overhead squat needs mobility tools (foam roller, bands, dowel) before barbell or rack purchases.

Training-goal mapping: strength = rack, barbell, plates, bench; hypertrophy = dumbbell pairs plus adjustable bench; fat loss = cardio machine plus open floor; sport = turf, sled, plyo box.

Space-per-activity benchmarks: 6-9 m² for a single-user strength station, 9-12 m² for functional/circuit work, 3-4 m² for cardio-only zones.

Budget the equipment mix to the dominant goal: at least 60% of equipment spend should serve the primary outcome the client named, not the secondary one.

Anthropometric check: user height minus 30 cm is a rough minimum ceiling clearance for overhead pressing; arm span plus 60 cm sets barbell station width.

Household analysis: count other users, their experience level, and shared-use hours; multi-user homes need duplicate cardio or adjustable dumbbells to avoid queuing.

Adherence forecast: clients training alone at home need lower-skill equipment (machines, bands, adjustable dumbbells) than clients with coaching or prior barbell experience.

Reassessment cadence: re-screen at 6-8 weeks and after any equipment addition; a strength gain of 10% or more typically requires heavier plate or dumbbell increments.

Usable footprint rule: subtract 0.9 m clear circulation from every wall before placing equipment; equipment pushed to walls removes access for spotting and loading.

Barbell station envelope: 2.4 m bar plus 0.3 m per side for plate loading equals roughly 3.0 m of clear width; rack depth plus 1.2 m in front for bench or squat bailout.

Treadmill placement: allow 0.6 m behind the deck for the emergency stop and 0.5 m each side; never place the rear of a treadmill facing a doorway or stair.

Cardio sightlines: orient screens and mirrors so users face into the room, not a blank wall at 0.5 m; minimum 1.2 m viewing distance for a wall-mounted display.

Zone sequencing: place high-traffic cardio nearest the entry, strength in the center or rear, and mobility/stretch in the quietest corner to reduce interference.

Ceiling and swing check: measure finished ceiling height, deduct light fixtures and garage-door tracks, then confirm the tallest user can press overhead plus 15 cm.

Door and stair clearance: keep a 0.9 m path from every door to the nearest equipment; gym flooring transitions must be ramped, not stepped, at thresholds.

Mirror and window logic: mirrors perpendicular to racks for form checking; avoid mirrors opposite windows to prevent glare during daytime training.

Multi-use rooms: choose folding or vertically stored equipment (folding bench, wall-mounted rack, suspension trainer) when the room must revert to another function.

Plate-loaded vs selectorized: plate-loaded is cheaper per kilogram and more durable but needs loading space; selectorized is faster to change and better for solo, low-skill users.

Barbell spec: 20 kg men's Olympic bar (28-29 mm shaft) vs 15 kg women's bar (25 mm); bushing bars suit general lifting, needle-bearing bars suit Olympic lifts.

Plate inventory rule: buy plates in pairs; a starter set is 2x20, 2x10, 2x5, 2x2.5 kg plus 2x1.25 kg microplates to allow 2.5 kg total jumps.

Dumbbell decision: fixed pairs cost less per kg but need a rack and floor space; adjustable dumbbells save 70-80% of footprint but cap at 24-41 kg on most models.

Rack spec: check upright height, hole spacing (25 mm or 50 mm), inside depth, and J-cup and safety-arm ratings against the client's projected 1RM plus 50%.

Cardio machine spec: treadmill motor 2.5-3.5 CHP for home use, belt 51-56 cm wide; rower and bike need far less ceiling height than a treadmill with incline.

Flooring load check: verify equipment weight ratings and user weight limits; a 120 kg user on a 110 kg-rated treadmill voids warranty and risks failure.

Bench spec: adjustable bench with at least 6 back angles and a 30-45 cm pad width; check pad height so the user's feet reach the floor flat.

Warranty weighting: home cardio frames commonly carry lifetime or 10-year frame coverage but only 1-3 years on parts and labor; budget for a parts replacement cycle.

Floor loading: residential live load is typically 1.5-2.0 kN/m²; a loaded rack plus lifter can exceed this locally, so spread load with plywood or a platform over joists.

Concrete slab on grade handles heavy racks directly; upper floors need equipment placed perpendicular to joists and near load-bearing walls, never mid-span.

Rubber flooring: 4-8 mm rolls for cardio and general floor, 15-20 mm tiles under racks and deadlift zones; crumb rubber tiles are the standard drop zone surface.

Platform build: two layers of 18 mm plywood plus a 20-25 mm rubber top layer, minimum 2.4 x 1.8 m, centered on the barbell path.

Vibration and noise: rubber plus a decoupling layer reduces impact noise; deadlifts on an upper floor are the highest-risk activity for neighbor complaints and structural fatigue.

Electrical: treadmills and other cardio draw 1.5-2.5 kW peak; dedicated 15-20 A circuits and GFCI protection near moisture are standard requirements.

Ventilation: allow 30-60 m³/h fresh air per occupant during vigorous exercise; garages and basements need mechanical ventilation or open doors during sessions.

Egress and fire: never block windows, doors, or electrical panels; keep a 0.9 m clear path and mount a fire extinguisher within 9 m of the training area.

Anchoring: wall-mounted racks and mirrors must fasten into studs or masonry with rated anchors; drywall anchors are not acceptable for any load-bearing gym fixture.

Budget split benchmark: 55-65% equipment, 15-20% flooring and installation, 10-15% delivery and assembly, 5-10% contingency.

Total cost of ownership: add delivery, assembly, extended warranty, and a 3-5% annual maintenance reserve to the purchase price before approving a budget.

Buy-order rule: flooring and structural work first, then large fixed equipment, then free weights, then accessories; accessories bought last avoid duplicate spending.

Lead times: rubber flooring 1-2 weeks, racks and cardio 2-8 weeks, custom platforms 2-4 weeks; sequence delivery so flooring cures before equipment lands.

Procurement check: confirm ceiling height, door width (minimum 0.8 m clear), and stair turn radius before ordering any item that cannot be returned.

Used-market screening: inspect barbell spin, plate weight tolerance, frame welds, and treadmill belt wear; avoid used equipment with discontinued parts.

Project schedule: 4-6 weeks for a single-room build, 8-12 weeks if electrical, ventilation, or structural reinforcement is needed.

Acceptance checklist at delivery: verify serial numbers, test every moving part, photograph damage before signing, and confirm warranty registration within 30 days.

Risk register: top home-gym risks are ceiling clearance, floor load, delivery access, and electrical capacity; resolve each before releasing the equipment order.