Your 100-inch TV can hang on a full-motion wall mount when the mount’s size range, weight limit, and VESA pattern all match that exact set.
For the full breakdown, see our best 100-Inch Full-Motion TV Mount guide.
A mount rated for 100-inch TVs can still be the wrong mount. Four specs settle the job — the TV’s VESA hole pattern, the TV’s weight, the mount’s published screen-size range, and the mount’s weight capacity — and all four have to line up with your particular set before anything gets drilled. Learning how to mount a 100-inch TV on a full-motion wall mount starts at the back panel, not the wall.
Current mounts do cover the size. SANUS lists the BXF330 for 65-inch to 100-inch TVs, and Samsung’s PMX700 Pro Series full-motion mount covers 42 to 100 inches with VESA support from 200×100 to 700×500 and a 150 lb limit. Those ratings only help if your TV’s own numbers match them.
Which Specs Decide Whether A Full-Motion Mount Fits A 100-Inch TV?
Four specs decide fit: the TV’s VESA hole pattern, the TV’s weight, the mount’s listed screen-size range, and the mount’s weight capacity. Screen size alone proves nothing — a 100-inch set with a wide hole pattern will not fit a mount that lists 100-inch support but stops at a narrower VESA range.
VESA patterns are measured in millimeters between the four mounting holes, and common sizes run from 100 mm x 100 mm through 200×200, 400×400, 600×400, and 800×400 mm. SANUS publishes a TV mount size chart listing those patterns. If your TV’s pattern falls outside the mount’s supported range, the mount is out no matter what the screen-size listing says.
Weight and reach come next. Samsung’s PMX700 Pro Series full-motion mount specs list a 150 lb weight limit, 2.6 to 31.3 inches of distance from the wall, 90 degrees of swivel either way, and a +12 to -3 degree tilt range. A mount that cannot publish comparable numbers is not one to trust with a screen this big.
| Spec To Verify | Where It’s Listed | Why It Decides The Job |
|---|---|---|
| TV’s VESA hole pattern | TV manual or the back panel | A pattern wider than the mount supports means no fit |
| TV’s weight | TV spec sheet | The brackets and plate add to what the wall carries |
| Mount’s screen-size range | Mount product page | A 42 to 100 inch rating covers a 100-inch set |
| Mount’s VESA range | Mount product page | The PMX700 covers 200×100 up to 700×500 |
| Mount’s weight capacity | Mount product page | Limits on 100-inch-capable models run about 132 to 176 lb |
| Arm extension off the wall | Mount product page | Long arms add leverage at the fasteners |
| Wall structure | Stud finder and the wall itself | Studs or masonry only — drywall alone will not hold |
If you would rather compare finished picks than spec sheets, our tested roundup of 100-inch full-motion TV mounts covers the models that clear these checks.
Will Your Wall And Studs Carry The Weight?
A full-motion mount holds a 100-inch TV only when the wall plate is bolted into wood studs or into masonry with the anchors the manufacturer specifies. Mount manuals in this class warn against drywall-only installation, and that warning matters more as the screen grows.
Three things make a 100-inch job harder than a 65-inch one:
- Arm leverage. An arm extended off the wall multiplies the pull on the fasteners, so the studs carry more than the TV’s resting weight.
- Combined load. The wall holds the TV, brackets, plate, and arm together — published capacities on 100-inch-capable mounts run about 132 lb to 176 lb.
- Wall type. Wood-frame walls take lag bolts into studs; brick and concrete need the specified masonry anchors. Drywall anchors are not a substitute at this size.
The manuals also call for ANSI-approved safety goggles, heavy-duty work gloves, and a second person for the lift.
Mounting A 100-Inch TV On A Full-Motion Bracket: The Step Order That Works
The install runs in one order: verify the specs, find the studs, mark and drill, fasten the plate, build the TV brackets, hang the set with help, then lock, level, and tighten. Jumping to the wall before the spec check is how people end up with a mount they cannot use.
- Compare the TV’s VESA pattern and weight against the mount’s published range and capacity.
- Find the studs with a stud finder, or confirm the wall is brick or concrete and gather the anchors the manual specifies.
- Hold the wall plate against the wall with a level and mark every hole location.
- Drill pilot holes, then fasten the wall plate with the supplied lag bolts into the studs.
- Attach the TV brackets to the back panel with the screws and spacers sized for your VESA pattern, resting the TV on padding rather than face down.
- Lift the TV with a helper and hang it on the plate, then engage the safety screws or locking clips.
- Level the set, tighten all nuts and bolts fully, and route the cables through the clips on the arm. Adjust tilt and swivel last.
How you know it worked: the TV holds its angle with the arm pulled out, and nothing shifts or sags when you let go.
If any one number fails — pattern, weight, screen-size range, or wall type — the mount is the wrong mount, and no extra bracket fixes that.
FAQs
What VESA pattern does a 100-inch TV use?
There is no single answer — 100-inch TVs ship with different hole patterns, usually in the larger VESA sizes such as 400×400, 600×400, or 800×400 mm. Check your TV’s manual or measure the horizontal and vertical spacing between the four mounting holes, then compare that measurement to the mount’s published VESA range before buying.
Can a full-motion mount hold a 100-inch TV on drywall alone?
No. Drywall by itself cannot carry that load, and mount manuals warn against drywall-only installation. The wall plate has to be bolted into wood studs, or into brick or concrete using the masonry anchors the manufacturer specifies. If no studs sit where you want the screen, move the location or bring in a professional.
How much weight can a full-motion TV mount support?
Published capacities on mounts that list 100-inch support range from roughly 132 lb to 176 lb depending on the model, and Samsung’s PMX700 Pro Series is rated at 150 lb. Your combined load — TV, brackets, and plate — has to stay under that number, while an extended arm adds leverage the studs must absorb.
References & Sources
- Samsung. “PMX700 Pro Series Full Motion Mount for 42″ to 100″ TVs.” Source for the 42–100 inch size range, 150 lb limit, VESA 200×100–700×500, arm distance, swivel, and tilt specs.
- SANUS. “SANUS TV Mount Size Chart.” Maps common VESA hole patterns, from 100 mm x 100 mm upward, to mount models.
- SANUS. “BXF330 Full-Motion Wall Mount.” Lists the mount as compatible with 65-inch to 100-inch TVs.
