Home gym glossary

Plain meanings for home gym equipment, adjustments and space planning. Each term links to a guide that puts it to use.

A

Adjustable dumbbell

A dumbbell whose weight can be changed on the same handle.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Adjustment ladder

A stepped support that holds a bench backrest at selected angles.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026

B

Back pad

The padded bench surface that supports the back.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026

C

Clearance

The free space needed around equipment for movement, access and use.

Home Gym Layout: Plan Clearance Before You Plan Equipment
Combined figure

A bench load rating that includes the user's body weight and the weights being used.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026
Cradle

The base that holds a selector dumbbell and its unused plates during a weight change.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained

D

Decline

A bench position with the head end lower than the hips.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026
Dial

A turning selector used to choose which weight plates lift with a dumbbell handle.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained

E

Expansion kit

Extra parts that extend a compatible adjustable dumbbell's weight range.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained

F

FID

Short for flat, incline and decline: the three backrest positions offered by this type of bench.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026
Flat bench

A bench with a horizontal support surface for the body.

6 Best Folding Weight Benches for Small Home Gyms in 2026
Floor mounting

Securing equipment to the floor with the fixings specified by its maker.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Folding bench

A weight bench designed to fold into a smaller shape for storage.

6 Best Folding Weight Benches for Small Home Gyms in 2026
Folding wall rack

A wall-mounted barbell rack whose uprights fold back toward the wall for storage.

5 Best Garage Gym Squat Racks for Low Ceilings and Shared Bays in 2026
Footprint

The floor area occupied by a piece of equipment.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared

I

Incline

A bench position with the backrest raised above horizontal.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026

J

J-cups

Hook-shaped supports that hold a barbell at a chosen height on a rack.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared

L

Leg roller

A padded cylinder used to help hold the legs in position on a bench.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026

P

Pin and pipe safeties

Metal safety bars with outer sleeves that span a rack to catch a barbell.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Plate-loaded

Loaded by adding separate weight plates by hand.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Power rack

A frame with front and rear uprights that supports a barbell and compatible safety catches inside it.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared

R

Resistance band

An elastic exercise band whose resistance increases as it stretches.

9 Best Small Home Gym Equipment Picks That Save Space in 2026

S

Selector pin

A removable pin placed at a marked setting to select the weight in a dumbbell stack.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Slide-pin system

A dumbbell selector with sliding pins for choosing larger and smaller weight steps.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Smith machine

A machine whose bar travels along guides rather than moving freely.

8 Best Squat Racks, Power Racks and Smith Machines for Home Gyms in 2026
Spotter arms

Supports that project from rack uprights to catch a bar outside the frame when used as directed.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Squat stand

A pair of uprights that holds a barbell, with an open area behind the posts.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Steel gauge

A numbering system for steel thickness; it does not by itself describe a rack's strength.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Step size

The difference between two adjacent weight settings.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Stored vertically

Storing a bench standing on end, only where the maker permits it.

REP AB-3000 2.0 FID Adjustable Weight Bench: Specs and Fit in 2026
Strap safeties

Strong straps fitted between rack posts to catch a bar inside the rack.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared
Stringer

A horizontal mounting board or plate that spreads wall-rack fixings across suitable studs.

9 Best Foldable Gym Equipment Picks for Small Rooms in 2026
Stud

A framing member inside a wall that may provide a fixing point for equipment, subject to its installation instructions.

9 Best Foldable Gym Equipment Picks for Small Rooms in 2026

T

Training zone

The area kept clear for exercises, with equipment stored around it.

Home Gym Layout: Plan Clearance Before You Plan Equipment
Twist-handle system

A dumbbell mechanism that selects weight when you turn the handle in its cradle.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained

U

Upright

A vertical rack post with mounting holes for hooks and attachments.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared

W

Wall hanger

A wall fixture that holds a separate bench off the floor after you lift it onto the support.

4 Options for a Weight Bench That Folds Up to Wall in 2026
Wall-mounted

Fixed to a wall instead of supported only by the floor.

9 Best Foldable Gym Equipment Picks for Small Rooms in 2026
Weight capacity

The maximum load stated by the maker for a particular product or use.

How Do Adjustable Dumbbells Work? Dial, Pin and Twist Mechanisms Explained
Westside hole spacing

Closer rack-hole spacing in the bench area for finer adjustment of bar supports and safeties.

Power Rack vs. Squat Rack: Structure, Safety and Footprint Compared