What an equipment spec contains
An equipment specification is the line-item bill of materials (BOM) for the entire project. It documents:
For a typical custom home, the BOM runs 80–200 line items. For estates, 300–600.
Why It Matters
Without a documented spec
- —Equipment is bought reactively as the project progresses
- —Rush-ordered items cost 20–40% more
- —Compatibility mistakes happen (LED drivers, dimmer types, network-equipment generations)
- —The "budget" is a guess, not a number
- —Lead-time items get ordered late and delay the project
With a documented spec
- Long-lead items get ordered at design completion (some equipment is 12+ weeks)
- Pricing is locked in, not subject to mid-project shifts
- Compatibility is verified before purchase, not at install
- The budget is real — line by line
How we build the spec
We use D-Tools Cloud for equipment specifications. Every line item lives in a master catalogue with current pricing, lead time, and compatibility data. The spec exports to Excel or PDF for client review and to internal procurement when the project moves to install.
Specifications include:
Categories Typically Specified
Lighting control
Processors, panels, dimmers, keypads, fixtures
Shading
Motors, fabrics, hardware, controllers
Audio
Amplifiers, processors, speakers, subs, sources
Video
Displays, projectors, screens, switchers, sources
Networking
Gateways, switches, APs, racks, cabling
Security
Panels, sensors, cameras, recorders, monitoring
Climate
Thermostats, sensors, integration modules
Control
Processors, touchpanels, remotes, programming
Related Reading
Design Hub
The full Summit Logic design methodology and deliverables.
Learn moreWhat a Design Package Includes
Every document inside a complete smart home design package.
Learn moreLutron HomeWorks
Estate-grade lighting control specified at design stage.
Learn moreAV Rack Build
Custom rack design, build, and termination standards.
Learn moreStart your project with a documented spec.
A fixed-price design engagement ends with a complete bill of materials you own. No installation commitment.