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Guides & how-tos

36 guides

Straight answers with the math, the standard and the tool that does the work. Written for the people who order the material, sign the permit and run the crew.

All Concrete & Masonry Paving & Earthwork Rigging & Lifting OSHA Compliance Safety Programs & Training Health & Ergonomics

Rigging & Lifting · 7 min read

D/d Ratio Explained: What Bending Costs a Sling

Bend diameter divided by rope diameter. The minimums that are law, the ratio your rated load was calculated from, and why a bigger sling makes it worse.

Rigging & Lifting · 8 min read

Sling Hitch Types: Vertical, Choker and Basket

One sling, three ratings. How the hitch you tie changes the capacity, and the two conditions a basket hitch has to meet before it is worth double.

OSHA Compliance · 6 min read

OSHA Guardrail Requirements: 42 Inches, 200 Pounds and the Rest

Top rail 42 in ± 3, 200 lb without failure, no deflection below 39 in, midrail at 150 lb — plus the details that fail an inspection.

OSHA Compliance · 7 min read

Harness Inspection: What to Look For Before Every Use

The defect list OSHA actually publishes, condition by condition, and the two-minute route around a harness that catches all of it.

OSHA Compliance · 8 min read

Fall Clearance Explained: Why a 6-Foot Lanyard Needs 17 Feet

The four distances that stack up below the anchorage, the 6 ft free fall limit, and what to do when the room underneath is not there.

OSHA Compliance · 7 min read

Is Free OSHA 10 Real? What You Actually Get for Nothing

Free OSHA 10 training is real. A free instant card is not. Here is how to tell the two apart before you pay.

Health & Ergonomics · 8 min read

How Cold Is Too Cold to Work Outside?

No legal minimum temperature exists. Here is what actually decides it: wind chill, wetness and workload, plus what OSHA expects employers to do about cold.

Paving & Earthwork · 6 min read

Cubic Yards to Tons: Why the Answer Depends on the Material

The conversion factor is a property of the material and of how tightly it is packed. Measured figures, the loose-versus-compacted trap, and how to get your own number.

Concrete & Masonry · 6 min read

Concrete Bag Yield: What a 40, 60 or 80 lb Bag Actually Makes

Published yields for every common bag size, bags per cubic yard, coverage by thickness — and the three products whose numbers are not what you expect.

OSHA Compliance · 11 min read

OSHA Heat Rules for Employers: What Actually Applies Today

No federal heat standard exists, but heat is still cited every summer. What applies today, the eleven questions an inspector asks, and the numbers OSHA publishes.

OSHA Compliance · 6 min read

OSHA 300, 300A or 301: Which Form Do You Need?

Three forms, three jobs: the log, the summary you post, and the report you file within 7 days.

OSHA Compliance · 6 min read

What Is an OSHA Recordable Injury?

Six outcomes, one first aid list, and the borderline calls that decide whether a case goes on the log.

OSHA Compliance · 6 min read

How to Calculate TRIR (With a Worked Example)

The formula, the four columns behind it, the hours that count, and a worked example you can check.

OSHA Compliance · 8 min read

Competent Person vs Qualified Person Under OSHA

Authority vs expertise — the two definitions, why the bar moves with the task, and why no class can make you one.

Safety Programs & Training · 9 min read

JHA vs JSA vs AHA: What Actually Differs

Two names for one document, one contract deliverable — and the six task analyses OSHA really does require by name.

Safety Programs & Training · 11 min read

Which OSHA Written Programs Does Your Site Actually Need?

A paragraph-by-paragraph list of the 29 CFR standards that require something in writing, what they do not require, and why sources disagree about the hot work permit.

OSHA Compliance · 8 min read

Confined Space vs Permit-Required Confined Space

The three-part test, the four permit triggers, and the difference between ventilating a space and eliminating its hazards.

OSHA Compliance · 8 min read

PPE Hazard Assessment Requirements Under 1910.132(d)

The four items the written record must identify, the Appendix B walk-through, the fit rule, and who pays.

Health & Ergonomics · 8 min readPopular

OSHA Silica Table 1 Explained

All 18 tasks with their required respirator, the four-hour shift-total rule, and what Table 1 does not excuse.

OSHA Compliance · 8 min read

Why Generic Lockout/Tagout Procedures Fail an Inspection

1910.147(c)(4) wants specific steps for a specific machine. Here is what a downloaded template cannot supply.

Health & Ergonomics · 9 min read

NRR Derating Explained: What an Earplug Actually Blocks

The 7 dB subtraction, the 50% safety factor and the NIOSH percentages — which method applies when, and to what.

OSHA Compliance · 6 min read

When Is a Fall Protection Plan Actually Allowed?

Three kinds of work, one burden of proof, ten requirements — and why a generic template does not qualify.

OSHA Compliance · 7 min readPopular

OSHA Fall Protection Height Requirements: 6 Feet, 4 Feet or 10 Feet?

Four different trigger heights, one table, and how to tell which one applies to your work.

OSHA Compliance · 6 min read

Forklift Training: What OSHA Actually Requires

Formal instruction, practical training, workplace evaluation — and the records the employer has to keep.

Rigging & Lifting · 6 min read

Forklift Load Center Explained: Why a Long Load Costs You Capacity

The load-moment method of 1910.178 Appendix A, a derating table, and what the arithmetic does not cover.

Rigging & Lifting · 6 min read

How to Estimate the Weight of a Load Before You Lift It

Volume times density, the density table, three worked examples, and the weights people forget to add.

OSHA Compliance · 8 min read

The OSHA 5-Foot Trench Rule: What It Actually Says

Under 5 feet is not automatically safe — the rule has two exceptions, and one of them is a competent person's examination.

OSHA Compliance · 10 min read

OSHA Soil Types A, B and C Explained

The four Subpart P categories, what knocks a soil down a grade, and the slope each one buys you.

Concrete & Masonry · 5 min readPopular

How Many Bags of Concrete Do I Need per Fence Post?

A chart by post size and hole depth, the math behind it, and the hole rule the bag manufacturers actually publish.

Paving & Earthwork · 4 min read

Asphalt Density: How Many Tons in a Cubic Yard?

One formula, one table, and where the real number for your mix actually comes from.

Rigging & Lifting · 4 min readPopular

Sling Angles Explained: Why 30° Doubles the Load

The angle factor table, what it does to leg tension, and why 30° is the floor — not a target.

Health & Ergonomics · 5 min read

The NIOSH Lifting Equation Explained (With a Worked Example)

The six multipliers, the Lifting Index, and a real example where raising a pallet halves the risk.

Safety Programs & Training · 7 min read

50 Toolbox Talk Topics for Construction Crews

Fifty topics by hazard family, each with the point to make and the standard behind it.

Health & Ergonomics · 5 min read

OSHA Noise Exposure Limits: the 90 dBA PEL vs the NIOSH 85 dBA REL

Two limits, two exchange rates, very different allowed exposure times — and what each one obliges you to do.

OSHA Compliance · 6 min readPopular

Hot Work Permit Requirements Under OSHA: What You Need to Know

When a permit is required, what belongs on it, the 35-foot rule and the fire watch — with the paragraph behind each number.

Safety Programs & Training · 7 min readPopular

OSHA 10 vs OSHA 30: Which One Do You Need?

Hours, audience, required topics and what the card really means — straight from OSHA's own program procedures.