How to Mount Heavy Artwork on Brick-Veneer Walls
Got a call about a fortnight ago from a lady in Hamilton South. Her late dad’s framed wedding photo had just taken a chunk of plasterboard off the wall on its way to the lounge floor. Frame bent, glass in pieces on the floorboards, picture hook still attached to a triangle of Gyprock dangling off the wire. Six kilos of frame and a 50 mm crater of plasterboard. Nine times out of ten when I get that call, it’s a brick-veneer wall and they’ve used a hook rated for “drywall up to 10 kg.” That rating’s for solid drywall over a stud — not Gyprock floating over a 50 mm cavity. The lady in Hamilton South was nearly in tears about the photo. We managed to get the frame mended at a place in Mayfield and re-mounted the lot properly two weeks later, this time with bolts into the brick. It’s not coming down again.
Right, here’s the thing about brick veneer. It’s the dominant wall type in Aussie homes built between 1950 and now. Outside skin is brick. Behind the brick is a 50 mm cavity (ventilation and waterproofing). Behind the cavity is a timber stud frame at 450 or 600 mm centres. Then 10 mm Gyprock on the inside. When you drill into a “brick wall” inside an Aussie home, you usually go through Gyprock, hit air, then hit brick. That cavity is the killer. Hang a 15 kg painting or a heavy mirror on brick veneer and you’ve got two real options: fix to the timber stud (best), or use a frame fixing or cavity anchor that grips the brick across the cavity. Here’s how I do it.
What you’ll need
- Stud finder with deep-scan mode (Bosch GMS 120, Stanley FatMax IntelliSensor)
- Cordless drill — 18V, hammer-capable for masonry (Ryobi One+ HP or Makita LXT)
- Masonry bit set 5 mm to 10 mm — Bosch CYL-5 or Makita
- 4 mm wood drill bit for stud fixings
- Ramset DynaBolt 6.5 mm sleeve anchors (masonry-only fix) OR Ramset frame anchors 10×100 mm (cavity-spanning fix)
- 14g × 65 mm Bugle batten screws if fixing to studs
- Spirit level (300 mm)
- Pencil, masking tape
- Vacuum cleaner with brush attachment
Step 1: Identify what wall you’re actually drilling into
Tap the wall. Hollow knock = Gyprock with a cavity behind it (brick veneer or stud-frame internal). Solid thud = solid brick or double-brick. If hollow, you’re brick veneer. If solid, you’re double-brick (older Aussie homes, pre-1950 mostly) and any DynaBolt straight in will work. Quick cross-check: drill a 3 mm pilot. If you punch through after 12 mm of soft material and feel air, brick veneer confirmed. If you hit hard resistance after 10 mm, double brick. Common mistake: assuming “feels solid” means solid brick — could be Gyprock right against a brick wall with no cavity (uncommon but happens in some 1960s extensions).
Step 2: Find the timber stud first — that’s the gold standard
If a stud is anywhere within 200 mm of where you want to hang the artwork, fix to the stud. Use the deep-scan mode on the stud finder — cheap finders read the brick behind as “stud” and lie. Cross-check by drilling a 3 mm pilot. Into a stud you get timber dust. Into Gyprock-then-cavity, the bit punches through into nothing. Stud-fixed: 14g × 65 mm batten screw, pre-drilled 4 mm, will hold 50+ kg easily. The cavity stops mattering. Listen mate, this is the easiest version of the job, and if you’re not confident with stud finders generally, my guide to using a stud finder properly walks through the cross-sweep technique that catches the lies.
Step 3: If no stud is convenient, decide between brick fix or frame fix
Two real options:
- DynaBolt straight into the brick — punch through Gyprock, drill into brick, set anchor in brick. Pros: rock solid, brick is doing the work. Cons: permanent hole; bolt stays in the brick forever.
- Ramset frame anchor spanning the cavity — long bolt with a sleeve that expands inside the brick AFTER passing through Gyprock and cavity. Pros: wall surface holds artwork flat against Gyprock, brick takes the load. This is the one I usually use.
Step 4: Mark out and tape
Hold the artwork up where it’ll live. Mark the top corners with pencil. Step back, level it, walk back, look again. For a heavy painting, two fixings 600 mm apart on the back wire are far better than one in the middle — twice the strength geometrically, and rotation-resistant if one anchor ever creeps.
Stick a 50 mm strip of masking tape over each drill point. Tape stops the drill skating, stops Gyprock paper tearing on bit exit, and gives you a clear pencil mark.
Step 5: Drill through the Gyprock first, on rotary mode only
Important — don’t go into hammer mode while you’re still in Gyprock or you’ll blow the paper face out into a 30 mm crater. Use rotary mode, 5 mm bit (for a 6.5 mm DynaBolt) or 10 mm bit (for a 10 mm frame anchor). Drill through the 10 mm of Gyprock, feel the punch-through into the cavity, stop. Why this matters: hammer mode adds percussive force, and Gyprock is paper-faced soft gypsum. Hammer mode in Gyprock = blown paper face every single time. Definately rotary only until you hit brick.
Step 6: Switch to hammer mode for the brick
Now switch the drill to hammer + rotary. Push the bit through the cavity until it touches brick. Drill into the brick to a depth of 65 mm (for a DynaBolt 6.5×65) or 75 mm (for a frame anchor). Mark the depth on the bit with masking tape so you don’t go too deep. Vacuum the hole. Brick dust mixed with sleeve anchors = anchor doesn’t grip properly. I run the vacuum brush over the hole and drill another 5 mm to clear dust at the back.
Step 7: Set the anchor properly
For a DynaBolt: tap the anchor in with a hammer until the head is flush with Gyprock. Tighten with a socket — you’ll feel it bite at 6-8 turns. Stop tightening when you feel hard resistance; over-tightening crushes the brick or strips the sleeve.
For a frame anchor: thread the bolt through the artwork bracket, push through the wall hole, tighten. The sleeve expands behind the brick. Easy as.
Step 8: Don’t trust “no-drill” hooks for anything over 5 kg on brick veneer
3M Command strips and Hercules hooks at Bunnings are fine for posters and unframed canvas. Anything with glass, anything in a heavy frame — they fail. The adhesive lets go in summer when the wall heats up. I’ve patched too many Gyprock holes from failed Command strips. Rule of thumb on brick veneer: under 3 kg, screw-in hook into Gyprock (no fancy anchor needed). 3-10 kg, plastic Gyprock anchor with a screw, centred on the Gyprock, not near edges. Over 10 kg, stud or brick fixing as above.
Step 9: Hang, level, step back, sleep on it
Once the bolts are set, hang the artwork, level it, step back. Push it gently both ways to feel for any movement. Walk away. Come back the next day and check it’s still level — if a fixing was iffy it’ll have crept overnight. Better to find that before the dinner party than during.
Step 10: Patch protocol and weight limits
If you ever take the artwork down, DynaBolts and frame anchors leave 8-10 mm holes. To patch: snap the bolt off flush with Gyprock (for DynaBolt — leave the sleeve in the brick), fill with Selleys No More Gaps in paintable white, sand flush after 24 hours, paint. Looks invisible. The bigger patches are a different job — see patching a large plasterboard hole if the anchor took a chunk with it. Weight limits I trust: single 14g screw into a stud holds 30 kg, two 14g screws into a stud 200 mm apart holds 70 kg, single DynaBolt 6.5 mm in solid brick holds 40 kg, two DynaBolts spread across two bricks holds 100 kg, frame anchor 10 mm spanning cavity to brick holds 60 kg single or 130 kg paired. For a heavy mirror over a fireplace, always double up. If you’ve got similar weight to hang elsewhere on plasterboard rather than brick veneer, my advice on hanging heavy mirrors and artwork covers the stud-anchor decision tree.
When to call a tradie
Solid brick walls in heritage homes (pre-1950 terraces in Maitland, Newcastle East) can have soft sandstone or salmon brick that crumbles when you drill it. Get a brickie or experienced handyman to assess before committing to a fixing — wrong technique and you’ve enlarged a crater into a structural worry. Same for fixing into rendered walls where you can’t tell what’s behind the render. And anything over 50 kg, two-person artwork — get a hanger in for that, the geometry and bracket selection is a different game.
Common screw-ups
- Hammer mode in Gyprock. Blown paper face every time. Rotary only until you hit brick.
- Skipping the vacuum step. Brick dust stops the sleeve gripping properly.
- Over-tightening the DynaBolt. Crushes the brick or strips the sleeve. Stop at hard resistance.
- Single fixing on a heavy frame. No rotation resistance, the frame ends up cockeyed. Always two fixings 600 mm apart for anything heavy.
- Trusting Command strips on glass-framed art. Summer heat releases the adhesive, frame hits the floor, glass everywhere.
Cost & time
Frame anchors are about $4-6 each, DynaBolts $3-5 each, masonry bit set $25-40 for a Bosch set. Time: 30 minutes for a single artwork including marking and clean-up, 45-60 minutes for a pair of fixings on a heavy piece. Way cheaper than a $200 picture hanger call-out.
The Mick wrap
The Mick rule for brick veneer is simple: find a stud or fix to the brick — never trust the Gyprock alone. The Gyprock is a 10 mm sheet of paper-faced gypsum hanging in space. It’s not structural. Anything heavy needs to land its weight on either the timber frame behind it or the brick behind the cavity. Get that right and your artwork will outlive the house. Don’t be that bloke who hangs Nan’s portrait off a plastic plug — fair dinkum, the cleanup conversation is brutal.
