Avidan Design is a focused engineering firm. We do three things — and we do them so they pass review the first time: HVAC load and energy calculations, electrical load and panel schedules, and structural layout engineering.
Every engagement uses the applicable code and method — no shortcuts, no invented numbers.
Room-by-room heating and cooling loads per ACCA Manual J (residential) and Manual N / ANSI/ASHRAE/ACCA Standard 183 (commercial), Manual S equipment selection, and Florida Energy Code compliance in approved EnergyGauge software.
HVAC Load & Energy CalcsNEC 2020 Article 220 service and feeder load calculations, a clear panel distribution, and a complete panel schedule — delivered as a permit-ready sheet.
Electrical Load & Panel ScheduleStructural layout engineering for residential and light commercial work — framing, foundation and lateral layouts drawn to be built, with member sizing and connector schedules.
Structural Engineering & LayoutNo fixed scope, no surprises. Every engagement follows the same disciplined path.
Send your plans and project information. We confirm scope and what review will require.
We run the load, schedule, or layout per the applicable code and method.
You receive a clean, complete package prepared for permit review.
If your scope is outside our three services, we'll say so directly and point you the right way.
Avidan supports owners, developers, investors, and project teams that need a clearer technical decision before design drift, permit delays, or expensive rework start compounding.