Reference library

Guides

Reference guides for landscaping, materials, and home projects. Depth charts, comparisons, coverage tables, and how-to explainers that pair with our calculators.

Landscaping Materials

How Much Gravel Do I Need?

A step-by-step method to size a gravel order in cubic yards, tons, and 50 lb bags for driveways, paths, and landscape beds.

Gravel Size Guide: 3/8, 3/4, and 1 1/2 Inch

Which gravel size works best for driveways, paths, drainage, and decorative beds, and how sizes affect coverage and compaction.

Gravel vs Crushed Stone

The practical differences between naturally rounded gravel and mechanically crushed stone, and where each is the right choice.

Gravel Coverage Chart

Square feet of coverage per cubic yard of gravel at common depths, with quick conversion between yards, tons, and 50 lb bags.

How Many Cubic Yards Do I Need?

Convert any length, width, and depth measurement to cubic yards using a simple formula, then adjust for waste and round for bulk ordering.

Cubic Feet to Cubic Yards, Explained

The conversion from cubic feet to cubic yards, why the divisor is 27, and how to handle inches and mixed units.

Cubic Yard Coverage Chart

How much area 1 cubic yard covers at common depths, from a light top dressing to a full driveway base.

How Much Does a Cubic Yard Weigh?

Typical weights per cubic yard for gravel, topsoil, mulch, sand, and concrete, and how moisture and material type change them.

How Much Mulch Do I Need?

Step-by-step method to size a mulch order in cubic yards and 2 cubic foot bags for beds, borders, and tree rings.

Mulch Depth Guide

How deep to mulch different plants, and why more is not always better for tree and shrub health.

Bagged Mulch vs Bulk Mulch

Cost, convenience, and quality trade-offs between bagged mulch from a home center and a bulk delivery from a landscape yard.

Mulch Coverage Chart

Square feet of mulch coverage per cubic yard and per 2 cubic foot bag at common depths.

How Much Topsoil Do I Need?

How to size a topsoil order for a lawn top-dressing, raised bed, or grade repair using cubic yards.

Topsoil Depth Guide

Recommended topsoil depths for lawns, raised beds, grading, and shrub planting, with the reasoning for each.

Topsoil vs Garden Soil vs Compost

How topsoil, garden soil, and compost differ, and how to blend them for lawns, beds, and raised planters.

How Much Does Topsoil Weigh?

Weight of screened topsoil per cubic yard, per bag, and how moisture changes hauling and shipping calculations.

How Much River Rock Do I Need?

Method to size a river rock order in cubic yards, tons, and bags for ground cover, dry creek beds, and decorative borders.

River Rock Size Guide

How to pick the right river rock size for pathways, ground cover, dry creek beds, and decorative features.

River Rock vs Gravel

Practical differences between smooth river rock and angular crushed gravel, and when to use each.

River Rock Coverage Chart

Coverage per cubic yard and per 50 lb bag of river rock at common depths, with a weight quick-reference.

Concrete Project Hub

Drainage Project Hub

Tax Planning Hub

Retirement Planning Hub

How Much Do I Need to Retire?

A step-by-step way to estimate your retirement number using the 25x rule and the 4 percent guideline, then stress-test it with inflation.

How Does a 401(k) Grow? Match, Limits, and Compounding

How a 401(k) builds wealth through employer match, tax-deferred compounding, and the 2026 contribution limits.

Roth IRA Explained: Tax-Free Growth

How a Roth IRA works: the 2026 contribution limit and income phase-outs, the 5-year rule, and the backdoor Roth.

What Is a Roth Conversion, and When Does It Make Sense?

How a Roth conversion works, the tax bill to expect, and the low-income years and IRMAA cliffs that decide whether it pays off.

How to Calculate Your RMD in 2026

A step-by-step method to calculate your Required Minimum Distribution, the age it starts, the IRS Uniform Lifetime Table, and the penalty for missing it.

Inherited IRA: The 10-Year Rule Explained

What the SECURE Act 10-year rule means for inherited IRAs, who is exempt as an eligible designated beneficiary, and when annual RMDs still apply.

When Should I Claim Social Security? Finding Your Break-Even Age

How claiming Social Security at 62, full retirement age, or 70 changes your benefit for life, and how to find your break-even age.

Pension Lump Sum vs Monthly Payments: How to Decide

How to compare a pension lump sum against lifetime monthly payments using present value, longevity, and your other guaranteed income.

How Much Income Will an Annuity Pay?

How immediate annuity payouts are calculated, why age and interest rates drive the amount, and the main payout options to compare.

Insurance Planning Hub

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