Sony XR-77A80L VESA Size & Mount Fit
Quick answer
The Sony XR-77A80L uses a 300×300 mm VESA pattern (M6 screws). Screw spec: Sony's 2023 bracket guidance: screw length 8-12 mm from the bracket attachment surface. The XR-77A80L weighs 76.7 lb (34.8 kg) without the stand. Any mount rated for VESA 300×300 or larger and at least 100 lb will fit the XR-77A80L. Verified against the Sony documentation — see source below.
XR-77A80L mounting specs
300x300 and 76.7 lb (34.8 kg) per Sony's US spec page - the heaviest 300x300 TV here, so plan a 100 lb-class mount and two studs. Sony's web page misprints the feet spread as 41.29 in; Sony's own cut sheet and spec-sheet PDF both print 1409 mm (55.5 in), narrow position 24.4 in.
Weight vs. required mount rating
Among the 2 verified 77-inch TVs in our database, the XR-77A80L is the heaviest at 76.7 lb — the 77-inch range here runs 45.9 to 76.7 lb. Within Sony, the KD-55X80K, KD-65X80K, KD-75X80K share the XR-77A80L's 300×300 mm pattern.
Mounts that fit the XR-77A80L
Filtered from our mount database: pattern covers 300×300 mm, rating is at least 100 lb (20% margin over the XR-77A80L's 76.7 lb), and the 77-inch screen is within the listed range.
Mounting Dream MD2296 Full Motion
Dual-arm articulating mount for large panels; swivels 45 degrees each way.
Supports VESA 200×200 up to 600×400 mm and 132 lb — clears the XR-77A80L's 300×300 mm / 76.7 lb.
Wall: 16-in dual stud required
Sanus VLT6 Advanced Tilt
Premium tilt mount you can angle with fingertips even after install.
Supports VESA 200×200 up to 600×400 mm and 150 lb — clears the XR-77A80L's 300×300 mm / 76.7 lb.
Wall: fits studs 16 to 24 in apart
Pipishell PISF1 Fixed
Heavy-duty fixed plate for big panels; sits low and rigid.
Supports VESA 200×200 up to 600×400 mm and 132 lb — clears the XR-77A80L's 300×300 mm / 76.7 lb.
Wall: 16-in dual stud required
USX Mount Full Motion 47-84
Long-reach arm for big screens with post-install leveling adjustment.
Supports VESA 200×200 up to 600×400 mm and 132 lb — clears the XR-77A80L's 300×300 mm / 76.7 lb.
Wall: 16-in dual stud required
EchoGear EGLL1 Low-Profile Fixed
Ultra-low-profile fixed mount that keeps the TV about an inch off the wall.
Supports VESA 200×200 up to 600×400 mm and 125 lb — clears the XR-77A80L's 300×300 mm / 76.7 lb.
Wall: 16-in dual stud required
Not sure between two of them? Run the Will It Fit checker for a verdict with reasons.
Screws & spacers for the XR-77A80L
The XR-77A80L takes M6 bolts: Sony's 2023 bracket guidance: screw length 8-12 mm from the bracket attachment surface; M6 holes per Sony's 77 in cut sheet. A bolt longer than the documented spec can bottom out against internal components and damage the panel — thread a screw in by hand first and confirm it seats before mounting the TV.
If your mount's hardware kit doesn't include the right length, a universal TV hardware kit covers M4–M8 in common lengths. More detail in the screw size guide.
Standing the XR-77A80L on furniture instead?
The XR-77A80L's legs span 55.5 in at their widest position — it fits consoles at least 58 in wide, so both feet sit fully on the surface with a safety margin.
Furniture narrower than 58 in? A universal pedestal stand bolts into the same 300×300 mm VESA holes (M6 screws) and stands on a single center column — the usual fix instead of replacing the console. Check its weight rating against the XR-77A80L's 76.7 lb.
Double-check before buying
- Remove any plastic hole plugs on the back panel and confirm all 4 threaded holes are present and undamaged.
- Measure hole spacing center-to-center in millimeters — you should get 300 mm across and 300 mm vertically.
- Compare the model number on the back-panel sticker with the one on this page (XR-77A80L) — retail variants can differ.
How to verify yourself
- Lay the TV screen-down on a soft, flat surface and locate the 4 threaded holes on the back.
- Measure horizontally between the centers of the upper holes, then vertically between an upper and a lower hole — in millimeters.
- Match the two numbers to a standard pattern (for the XR-77A80L: 300×300 mm). Full walkthrough with photos of what to avoid: how to measure VESA.
Frequently asked questions
What VESA pattern does the Sony XR-77A80L use?
The Sony XR-77A80L uses a 300×300 mm VESA pattern — 300 mm between hole centers horizontally and 300 mm vertically (about 11.8×11.8 in). Any bracket whose supported range covers 300×300 mm will line up. Confirm on the back panel before ordering, since retail variants of a series occasionally differ.
What size screws does the XR-77A80L need for wall mounting?
The XR-77A80L takes M6 metric screws. Documented length: Sony's 2023 bracket guidance: screw length 8-12 mm from the bracket attachment surface; M6 holes per Sony's 77 in cut sheet. A bolt that is too long can bottom out and damage the panel or internals, so verify thread depth on the XR-77A80L with a hand-tightened test screw before torquing anything down.
How much does the XR-77A80L weigh without the stand?
The XR-77A80L weighs 76.7 lb (34.8 kg) without the stand or cables. For a 20% safety margin, pick a mount rated for at least 100 lb. Anchoring matters as much as the rating: at this weight, one properly hit stud is usually enough, but follow your mount's instructions.
Will a 400×400 mount fit the XR-77A80L?
A bracket sold as 400×400-only will not line up with the XR-77A80L's 300×300 mm holes. Most 400×400 mounts, however, support a range of patterns — if the spec sheet lists 300×300 mm, it fits directly. If not, a VESA adapter plate (300×300→400×400) bridges the difference; see our adapter guide.
How far apart are the legs on the XR-77A80L?
The XR-77A80L's feet at their widest position span about 55.5 in across the outside edges. A console at least 58 in wide lets both feet sit fully on the surface (the manual also documents a narrower inner position). Narrower furniture calls for a pedestal stand that bolts into the 300×300 mm VESA holes.
Can the XR-77A80L be mounted on a full-motion bracket?
Yes. At 76.7 lb, the XR-77A80L is within range of full-motion arms rated 100 lb or higher — 3 full-motion mount(s) in our database clear it. Articulating arms add leverage on the wall, so stud anchoring per the mount manufacturer's instructions is more important than with fixed brackets.