What's inside
As an Amazon Associate I earn from qualifying purchases. This post may contain affiliate links at no extra cost to you.
A towel rack puts more strain on drywall than its weight suggests. Pulling a towel off the bar creates a repeated outward tug, and a loose screw can enlarge its hole until the rack comes away. For hollow drywall, the best anchor depends on the rack’s bracket spacing, the wall cavity, and whether you can catch a stud.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you.
What we cover
Check for studs first
Before buying anchors, check whether either mounting bracket lines up with a stud. Use a stud finder, then confirm by driving a small nail in a spot the bracket will cover. Wood studs are commonly spaced 16 inches apart, but the rack’s holes may not match. If one bracket lands on a stud, use a suitable wood screw there and anchor the other bracket in drywall.
A rack fixed to two studs is the strongest option. For a standard bracket over a wood stud, a screw that penetrates the stud by about 1 inch is a practical minimum; account for the drywall and bracket thickness when choosing length. Don’t use a drywall anchor where a screw can go directly into solid wood.
Compare the main anchor options
| Anchor type | Best use | Trade-off |
|---|---|---|
| Plastic expansion anchor | Light-duty rack, low pulling force | Cheapest and simplest, but easier to loosen or pull out |
| Self-drilling drywall anchor | Light to moderate use in sound drywall | Fast to install; coarse threads can damage drywall if overtightened |
| Metal hollow-wall anchor | Regular use when studs are unavailable | Strong grip when set correctly; needs the right hole and setting tool |
| Toggle bolt or strap toggle | Higher loads or a rack likely to get pulled on | Spreads load behind the wall, but needs cavity clearance and a larger hole |
Ratings printed on anchor packaging are not a guarantee for a towel rack. They usually assume a particular wall thickness, installation, and load direction. Repeated pulling, damaged drywall, and a bracket that concentrates force on one screw can all reduce real-world holding power.
Best choice for most racks: metal hollow-wall anchors
For a rack with two brackets and no stud behind either one, a metal hollow-wall anchor is a sensible default in sound, standard 1/2-inch drywall. These anchors expand behind the board and clamp it between the anchor and its flange. That broad backing is less likely to chew up the hole than a simple plastic plug.
Choose an anchor whose package lists compatibility with your drywall thickness and whose screw fits the rack bracket. Many metal anchors use a setting tool to expand the sleeve; use it if specified. If the sleeve is not fully set, the screw may spin or the anchor may pull loose. If you tighten the screw hard after setting, you can crush the drywall and weaken the fixing.
For dependable results, look at metal hollow-wall anchors with a setting tool. Check the required drill diameter against the anchor instructions before drilling.
When to use toggle anchors
A toggle spreads the load across a larger area behind the drywall, which can help when the rack will see frequent pulling or when the mounting holes are relatively far apart. A strap-style toggle is often easier to position than a traditional spring toggle, though it still needs a hole large enough for its channel. Confirm there is clear space behind the wall; a pipe, cable, or stud can block the toggle.
Use a toggle only if the rack’s bracket and supplied screw can work with it. Some decorative brackets have shallow recesses or small screw holes that don’t suit the larger screws toggles often use. Don’t force a screw through the bracket or substitute a smaller screw without checking the anchor’s instructions. A strap-toggle anchor kit is worth considering for a heavily used rack, but it makes a larger, harder-to-patch hole than a small self-drilling anchor.
When a cheaper anchor is fine
A plastic expansion anchor or self-drilling drywall anchor can be adequate for a lightweight rack holding hand towels, provided the drywall is intact and the rack is not being used as a grab bar. Self-drilling anchors install quickly with a screwdriver or drill on a low clutch setting. They’re convenient, but they’re not a substitute for a toggle when people may lean or yank on the rack.
For a low-cost option, choose self-drilling drywall anchors with matching screws. Avoid driving them at high speed with an impact driver: the sudden torque can strip the anchor’s grip or break the drywall paper before you notice.
Install without damaging the drywall
Hold the rack level and mark the bracket holes. Check for studs and possible wiring or plumbing before drilling. Use the drill-bit size specified by the anchor maker; an oversized hole can leave the anchor loose, while an undersized hole can tear the face paper during installation. A cordless drill with a clutch is easier to control than an impact driver for this work.
Set each anchor fully, then fasten the brackets until snug. Stop if the anchor spins, the drywall dimples, or the bracket still moves. Those are signs the fixing is not secure. Don’t keep tightening in an attempt to make it hold: move the hole if needed, patch the failed hole, and install a suitable anchor in fresh drywall. If the wall feels soft, crumbles, or has been wet, repair it before mounting the rack.
After installation, pull the rack gently in the direction it will be used. It should not shift or click against the wall. Recheck the screws after a few days; a bracket that loosens early may need a different anchor or a stud-mounted fixing.