Hardware Schedule - MediaVerse Construction Guide

Overview

Door Schedule — All Doors

Quick-reference table for all four doors. Frame, jamb depth, threshold, seal, closer, hinges, and handle for each door ID. Detailed cards below.

Door ID	Name / Location	Type	Size (W×H)	STC	Frame	Jamb Depth	Threshold	Seal	Closer	Hinges	Handle
D1	Entry South wall SE corner	Exterior	90 × 210 cm	50	16 ga steel, welded corners, sand/lead sheet filled	140 mm	Auto drop seal + neoprene gasket	Magnetic perimeter seal, continuous compression gasket	Surface closer	3× ball-bearing	Lever
D2	Control Buffer wall west face	Interior	80 × 210 cm	45	18 ga steel, welded corners, grout-filled	120 mm	Auto drop seal	Neoprene perimeter gasket, adjustable	Surface closer	3× ball-bearing	Lever
D3	VO Live VO/Control partition	Interior	80 × 210 cm	45	18 ga steel, welded corners, grout-filled	120 mm	Auto drop seal	Neoprene perimeter gasket, adjustable	Surface closer	3× ball-bearing	Lever
D4	Video Studio Editing/Video partition	Interior	90 × 210 cm	40	18 ga steel, welded corners, grout-filled	120 mm	Auto drop seal	Neoprene perimeter gasket, adjustable	Surface closer	3× ball-bearing	Lever

All door hardware is Acoustic Critical [AC]. Frame type, jamb depth, threshold mechanism, and seal system are specified assemblies — do not substitute with standard door hardware. A 1mm perimeter gap reduces effective STC by 10–15 points.

Detail Specifications

Door-by-Door Detail Cards

Full specification for each door including installation notes and special requirements.

Size 90 × 210 cm
Weight 70 kg (approx.)
Frame 16 ga steel, welded corners, filled with sand/lead sheet
Jamb Depth 140 mm
Threshold Automatic drop seal + neoprene gasket
Seal Type Magnetic perimeter seal, continuous compression gasket
Closer Surface-mounted door closer — 3–5 s close time from 90°
Hinges 3× heavy-duty ball-bearing hinges (sized for 70 kg leaf)
Handle Lever handle, keyed deadbolt
Leaf Steel-clad solid core, manufacturer STC 50 certified — no hollow-core substitution

Exterior door: add weather stripping + threshold rain deflector. Magnetic seal requires pull force verification >2 kg/m. Add 'LIVE' indicator light above exterior face.

Size 80 × 210 cm
Frame 18 ga steel, welded corners, grout-filled
Jamb Depth 120 mm
Threshold Automatic drop seal
Seal Type Neoprene perimeter gasket, adjustable
Closer Surface-mounted door closer — 3–5 s close time from 90°
Hinges 3× ball-bearing hinges
Handle Lever handle, passage (no lock)
Leaf Steel-clad solid core, STC 45 certified

Internal acoustic door. Mounts in Buffer Spine wall (STC 55) — door is weakest element at this junction. Do not reduce door STC below wall STC minus 15 points. Swing direction: into Control Room.

Size 80 × 210 cm
Frame 18 ga steel, welded corners, grout-filled
Jamb Depth 120 mm
Threshold Automatic drop seal
Seal Type Neoprene perimeter gasket, adjustable
Closer Surface-mounted door closer — 3–5 s close time from 90°
Hinges 3× ball-bearing hinges
Handle Lever handle, passage (no lock)
Leaf Steel-clad solid core, STC 45 certified

Does NOT overlap the observation window (window x=40–120 cm; D3 at x=126–206 cm). Verify clear swing arc before installation — swing must not foul observation window frame. Add studio 'LIVE' indicator light visible from Control Room side.

Size 90 × 210 cm
Frame 18 ga steel, welded corners, grout-filled
Jamb Depth 120 mm
Threshold Automatic drop seal
Seal Type Neoprene perimeter gasket, adjustable
Closer Surface-mounted door closer — 3–5 s close time from 90°
Hinges 3× ball-bearing hinges
Handle Lever handle, passage (no lock)
Leaf Steel-clad solid core, STC 40 certified — must not exceed host wall STC 40 (W7 partition)

STC matched to host partition (W7, STC 40) — specifying a higher-STC door here provides no acoustic benefit and wastes budget. 90cm width accommodates camera equipment through-passage. Swing direction: into Video Studio to clear Editing circulation path.

Frame Types

Frame Specification Comparison

Two frame types are used in this project. The exterior entry (D1) uses a heavier specification. All three interior acoustic doors (D2, D3, D4) share the same frame type.

Spec	Type A — STC 50 Frame (D1 only)	Type B — STC 45 Frame (D2, D3, D4)
Gauge	16 ga steel	18 ga steel
Corner Treatment	Fully welded corners	Fully welded corners
Frame Fill	Sand + lead sheet sandwich fill	Structural grout fill
Jamb Depth	140 mm	120 mm
Threshold	Automatic drop seal + neoprene gasket	Automatic drop seal
Perimeter Seal	Magnetic compression seal (continuous, perimeter)	Neoprene perimeter gasket, adjustable
Weather Seal	Weather strip + rain deflector at threshold	Not required (interior)
Hinges	3× ball-bearing (heavy duty, for 70 kg leaf)	3× ball-bearing (standard acoustic grade)
Closer	Surface closer (heavy-duty)	Surface closer (standard)
Handle	Lever + keyed deadbolt	Lever, passage
Sealant at install	Tremco Acoustical Sealant — full perimeter, WET before frame set	Tremco Acoustical Sealant — full perimeter, WET before frame set

Ongoing Maintenance

Acoustic Door Maintenance Schedule

Acoustic door performance degrades over time. A 1mm perimeter gap can reduce effective STC by 10–15 points. Inspect ALL doors annually at minimum, or after any physical impact event.

Critical: Propping acoustic doors open during sessions destroys all isolation. Consider magnetic hold-open devices that release on studio 'LIVE' signal. Inspect closing mechanisms if staff are found propping doors.

🔍 Seal Checks

Perimeter gaskets: check for compression set, cracking, or gaps — replace if any light visible with door closed
Drop seals: verify full contact with threshold when door closes — adjust or replace mechanism if gap exists
Threshold gaskets: inspect for wear from foot traffic — D1 exterior threshold especially vulnerable
Magnetic seals (D1 only): verify magnetic strip alignment and pull force >2 kg/m

⚙ Closer & Hinge Checks

Door closer: verify latching force pulls door fully into seal contact — door must not rest ajar
Hinge pins: lubricate annually — squeaking indicates wear that may cause staff to prop doors open
Closing speed: 3–5 seconds from 90° to latch — too fast causes slam damage, too slow means door left open

Inspection interval: Annual (minimum), or immediately after any physical impact. Log inspection date and findings in the building maintenance record. Replace any seal showing visible light gaps — partial re-sealing is not sufficient.

Installation

Frame Installation Requirements

Sealant — apply WET:
Acoustic sealant (Tremco) must be applied wet around the full frame perimeter before the frame is set in the opening. Do not attempt to inject sealant into finished gaps retroactively — it will not achieve the same performance.

Frame plumb and level:
Frames must be plumb and level to ±1mm. Out-of-square frames cause perimeter seal gaps even when the gasket is new. Use a laser level and shim as required before final frame attachment.

Drop seal test:
After installation, verify automatic drop seal deploys fully to the threshold with zero gap under the door leaf. Test with a sheet of paper — it should not pass under a closed door. Adjust drop seal mechanism until this test passes.

Light test — pass criterion:
With all lights on inside the room and all lights off in the corridor, close the door in darkness. No light should be visible at any point around the door perimeter or threshold. This is the acceptance test before sign-off.